20805074640

素因数分解:

$2^4\times 3^3\times 5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{373}}^1$

素因数の和:457

約数の個数: 960

約数和(自身を含む): 91357009920

約数和(自身を除く): 70551935280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 17, 18, 20, 21, 24, 27, 28, 30, 31, 34, 35, 36, 40, 42, 45, 48, 49, 51, 54, 56, 60, 62, 63, 68, 70, 72, 80, 84, 85, 90, 93, 98, 102, 105, 108, 112, 119, 120, 124, 126, 135, 136, 140, 144, 147, 153, 155, 168, 170, 180, 186, 189, 196, 204, 210, 216, 217, 238, 240, 245, 248, 252, 255, 270, 272, 279, 280, 294, 306, 310, 315, 336, 340, 357, 360, 372, 373, 378, 392, 408, 420, 432, 434, 441, 459, 465, 476, 490, 496, 504, 510, 527, 540, 558, 560, 588, 595, 612, 620, 630, 651, 680, 714, 720, 735, 744, 746, 756, 765, 784, 816, 833, 837, 840, 868, 882, 918, 930, 945, 952, 980, 1008, 1020, 1054, 1071, 1080, 1085, 1116, 1119, 1176, 1190, 1224, 1240, 1260, 1302, 1323, 1360, 1395, 1428, 1470, 1488, 1492, 1512, 1519, 1530, 1581, 1666, 1674, 1680, 1736, 1764, 1785, 1836, 1860, 1865, 1890, 1904, 1953, 1960, 2040, 2108, 2142, 2160, 2170, 2205, 2232, 2238, 2295, 2352, 2380, 2448, 2480, 2499, 2520, 2604, 2611, 2635, 2646, 2790, 2856, 2940, 2984, 3024, 3038, 3060, 3162, 3213, 3255, 3332, 3348, 3357, 3472, 3528, 3570, 3672, 3689, 3720, 3730, 3780, 3906, 3920, 4080, 4165, 4185, 4216, 4284, 4340, 4410, 4464, 4476, 4557, 4590, 4743, 4760, 4998, 5040, 5208, 5222, 5270, 5292, 5355, 5580, 5595, 5712, 5859, 5880, 5968, 6076, 6120, 6324, 6341, 6426, 6510, 6615, 6664, 6696, 6714, 7056, 7140, 7344, 7378, 7440, 7460, 7497, 7560, 7595, 7812, 7833, 7905, 8330, 8370, 8432, 8568, 8680, 8820, 8952, 9114, 9180, 9486, 9520, 9765, 9996, 10071, 10416, 10444, 10540, 10584, 10710, 11067, 11160, 11190, 11563, 11718, 11760, 12152, 12240, 12495, 12648, 12682, 12852, 13020, 13055, 13230, 13328, 13392, 13428, 13671, 14229, 14280, 14756, 14920, 14994, 15120, 15190, 15624, 15666, 15810, 16065, 16660, 16740, 16785, 17136, 17360, 17640, 17904, 18228, 18277, 18360, 18445, 18972, 19023, 19530, 19992, 20142, 20888, 21080, 21168, 21420, 22134, 22320, 22380, 22491, 22785, 23126, 23436, 23499, 23715, 24304, 24990, 25296, 25364, 25704, 25823, 26040, 26110, 26460, 26856, 27342, 28458, 28560, 29295, 29512, 29840, 29988, 30380, 31248, 31332, 31620, 31705, 32130, 33201, 33320, 33480, 33570, 34689, 35280, 36456, 36554, 36720, 36890, 37485, 37944, 38046, 39060, 39165, 39984, 40284, 41013, 41776, 42160, 42840, 44268, 44387, 44760, 44982, 45570, 46252, 46872, 46998, 47430, 49980, 50355, 50728, 51408, 51646, 52080, 52220, 52920, 53712, 54684, 54831, 55335, 56916, 57069, 57815, 58590, 59024, 59976, 60760, 62664, 63240, 63410, 64260, 66402, 66640, 66960, 67140, 68355, 69378, 70497, 71145, 72912, 73108, 73780, 74970, 75888, 76092, 77469, 78120, 78330, 80568, 80941, 82026, 85680, 88536, 88774, 89520, 89964, 91140, 91385, 92504, 93744, 93996, 94860, 95115, 99603, 99960, 100710, 101456, 103292, 104067, 104440, 105840, 109368, 109662, 110670, 112455, 113832, 114138, 115630, 117180, 117495, 119952, 121520, 125328, 126480, 126820, 128520, 129115, 132804, 133161, 134280, 136710, 138756, 140994, 142290, 146216, 147560, 149940, 152184, 154938, 156240, 156660, 161136, 161882, 164052, 164493, 166005, 171207, 173445, 177072, 177548, 179928, 182280, 182770, 185008, 187992, 189720, 190230, 196571, 199206, 199920, 201420, 205065, 206584, 208134, 208880, 218736, 219324, 221340, 221935, 224910, 227664, 228276, 231260, 232407, 234360, 234990, 242823, 253640, 257040, 258230, 265608, 266322, 268560, 273420, 274155, 277512, 281988, 284580, 285345, 292432, 295120, 299880, 304368, 309876, 310709, 312201, 313320, 323764, 328104, 328986, 332010, 342414, 346890, 352485, 355096, 359856, 364560, 365540, 375984, 379440, 380460, 387345, 393142, 398412, 399483, 402840, 404705, 410130, 413168, 416268, 438648, 442680, 443870, 449820, 456552, 462520, 464814, 468720, 469980, 485646, 493479, 498015, 507280, 516460, 520335, 531216, 532644, 546840, 548310, 555024, 563976, 566587, 569160, 570690, 589713, 599760, 619752, 621418, 624402, 626640, 647528, 656208, 657972, 664020, 665805, 684828, 693780, 697221, 704970, 710192, 728469, 731080, 760920, 774690, 786284, 796824, 798966, 805680, 809410, 820260, 822465, 832536, 856035, 877296, 885360, 887740, 899640, 913104, 925040, 929628, 932127, 939960, 971292, 982855, 986958, 996030, 1032920, 1040670, 1065288, 1093680, 1096620, 1127952, 1133174, 1138320, 1141380, 1162035, 1179426, 1198449, 1214115, 1239504, 1242836, 1248804, 1295056, 1315944, 1328040, 1331610, 1369656, 1375997, 1387560, 1394442, 1409940, 1456938, 1462160, 1521840, 1549380, 1553545, 1561005, 1572568, 1593648, 1597932, 1618820, 1640520, 1644930, 1665072, 1699761, 1712070, 1769139, 1775480, 1799280, 1859256, 1864254, 1879920, 1942584, 1965710, 1973916, 1992060, 1997415, 2065840, 2081340, 2130576, 2185407, 2193240, 2266348, 2282760, 2324070, 2358852, 2396898, 2428230, 2467395, 2485672, 2497608, 2631888, 2656080, 2663220, 2739312, 2751994, 2775120, 2788884, 2796381, 2819880, 2832935, 2913876, 2948565, 3098760, 3107090, 3122010, 3145136, 3195864, 3237640, 3281040, 3289860, 3399522, 3424140, 3486105, 3538278, 3550960, 3642345, 3718512, 3728508, 3885168, 3931420, 3947832, 3984120, 3994830, 4127991, 4162680, 4370814, 4386480, 4532696, 4565520, 4648140, 4660635, 4717704, 4793796, 4856460, 4934790, 4971344, 4995216, 5099283, 5307417, 5326440, 5503988, 5577768, 5592762, 5639760, 5665870, 5827752, 5897130, 5992245, 6197520, 6214180, 6244020, 6391728, 6475280, 6579720, 6799044, 6848280, 6879985, 6972210, 7076556, 7284690, 7457016, 7862840, 7895664, 7968240, 7989660, 8255982, 8325360, 8389143, 8498805, 8741628, 8845695, 9065392, 9296280, 9321270, 9435408, 9587592, 9631979, 9712920, 9869580, 10198566, 10614834, 10652880, 10927035, 11007976, 11155536, 11185524, 11331740, 11655504, 11794260, 11984490, 12383973, 12428360, 12488040, 13159440, 13598088, 13696560, 13759970, 13944420, 13981905, 14153112, 14569380, 14914032, 15297849, 15725680, 15979320, 16511964, 16778286, 16997610, 17483256, 17691390, 18592560, 18642540, 19175184, 19263958, 19425840, 19739160, 20397132, 20639955, 21229668, 21854070, 22015952, 22371048, 22663480, 23588520, 23968980, 24767946, 24856720, 24976080, 25496415, 26537085, 27196176, 27519940, 27888840, 27963810, 28306224, 28895937, 29138760, 30595698, 31958640, 33023928, 33556572, 33995220, 34966512, 35382780, 37151919, 37285080, 38527916, 39478320, 40794264, 41279910, 41945715, 42459336, 43708140, 44742096, 45326960, 47177040, 47937960, 48159895, 49535892, 50992830, 53074170, 55039880, 55777680, 55927620, 57791874, 58277520, 61191396, 61919865, 66047856, 67113144, 67990440, 70765560, 74303838, 74570160, 76489245, 77055832, 81588528, 82559820, 83891430, 84918672, 86687811, 87416280, 95875920, 96319790, 99071784, 101985660, 106148340, 110079760, 111855240, 115583748, 122382792, 123839730, 134226288, 135980880, 141531120, 144479685, 148607676, 152978490, 154111664, 165119640, 167782860, 173375622, 174832560, 185759595, 192639580, 198143568, 203971320, 212296680, 223710480, 231167496, 244765584, 247679460, 260063433, 288959370, 297215352, 305956980, 330239280, 335565720, 346751244, 371519190, 385279160, 407942640, 424593360, 433439055, 462334992, 495358920, 520126866, 577918740, 594430704, 611913960, 671131440, 693502488, 743038380, 770558320, 866878110, 990717840, 1040253732, 1155837480, 1223827920, 1300317165, 1387004976, 1486076760, 1733756220, 2080507464, 2311674960, 2600634330, 2972153520, 3467512440, 4161014928, 5201268660, 6935024880, 10402537320, 20805074640]

約数ペア:

[(1, 20805074640), (2, 10402537320), (3, 6935024880), (4, 5201268660), (5, 4161014928), (6, 3467512440), (7, 2972153520), (8, 2600634330), (9, 2311674960), (10, 2080507464), (12, 1733756220), (14, 1486076760), (15, 1387004976), (16, 1300317165), (17, 1223827920), (18, 1155837480), (20, 1040253732), (21, 990717840), (24, 866878110), (27, 770558320), (28, 743038380), (30, 693502488), (31, 671131440), (34, 611913960), (35, 594430704), (36, 577918740), (40, 520126866), (42, 495358920), (45, 462334992), (48, 433439055), (49, 424593360), (51, 407942640), (54, 385279160), (56, 371519190), (60, 346751244), (62, 335565720), (63, 330239280), (68, 305956980), (70, 297215352), (72, 288959370), (80, 260063433), (84, 247679460), (85, 244765584), (90, 231167496), (93, 223710480), (98, 212296680), (102, 203971320), (105, 198143568), (108, 192639580), (112, 185759595), (119, 174832560), (120, 173375622), (124, 167782860), (126, 165119640), (135, 154111664), (136, 152978490), (140, 148607676), (144, 144479685), (147, 141531120), (153, 135980880), (155, 134226288), (168, 123839730), (170, 122382792), (180, 115583748), (186, 111855240), (189, 110079760), (196, 106148340), (204, 101985660), (210, 99071784), (216, 96319790), (217, 95875920), (238, 87416280), (240, 86687811), (245, 84918672), (248, 83891430), (252, 82559820), (255, 81588528), (270, 77055832), (272, 76489245), (279, 74570160), (280, 74303838), (294, 70765560), (306, 67990440), (310, 67113144), (315, 66047856), (336, 61919865), (340, 61191396), (357, 58277520), (360, 57791874), (372, 55927620), (373, 55777680), (378, 55039880), (392, 53074170), (408, 50992830), (420, 49535892), (432, 48159895), (434, 47937960), (441, 47177040), (459, 45326960), (465, 44742096), (476, 43708140), (490, 42459336), (496, 41945715), (504, 41279910), (510, 40794264), (527, 39478320), (540, 38527916), (558, 37285080), (560, 37151919), (588, 35382780), (595, 34966512), (612, 33995220), (620, 33556572), (630, 33023928), (651, 31958640), (680, 30595698), (714, 29138760), (720, 28895937), (735, 28306224), (744, 27963810), (746, 27888840), (756, 27519940), (765, 27196176), (784, 26537085), (816, 25496415), (833, 24976080), (837, 24856720), (840, 24767946), (868, 23968980), (882, 23588520), (918, 22663480), (930, 22371048), (945, 22015952), (952, 21854070), (980, 21229668), (1008, 20639955), (1020, 20397132), (1054, 19739160), (1071, 19425840), (1080, 19263958), (1085, 19175184), (1116, 18642540), (1119, 18592560), (1176, 17691390), (1190, 17483256), (1224, 16997610), (1240, 16778286), (1260, 16511964), (1302, 15979320), (1323, 15725680), (1360, 15297849), (1395, 14914032), (1428, 14569380), (1470, 14153112), (1488, 13981905), (1492, 13944420), (1512, 13759970), (1519, 13696560), (1530, 13598088), (1581, 13159440), (1666, 12488040), (1674, 12428360), (1680, 12383973), (1736, 11984490), (1764, 11794260), (1785, 11655504), (1836, 11331740), (1860, 11185524), (1865, 11155536), (1890, 11007976), (1904, 10927035), (1953, 10652880), (1960, 10614834), (2040, 10198566), (2108, 9869580), (2142, 9712920), (2160, 9631979), (2170, 9587592), (2205, 9435408), (2232, 9321270), (2238, 9296280), (2295, 9065392), (2352, 8845695), (2380, 8741628), (2448, 8498805), (2480, 8389143), (2499, 8325360), (2520, 8255982), (2604, 7989660), (2611, 7968240), (2635, 7895664), (2646, 7862840), (2790, 7457016), (2856, 7284690), (2940, 7076556), (2984, 6972210), (3024, 6879985), (3038, 6848280), (3060, 6799044), (3162, 6579720), (3213, 6475280), (3255, 6391728), (3332, 6244020), (3348, 6214180), (3357, 6197520), (3472, 5992245), (3528, 5897130), (3570, 5827752), (3672, 5665870), (3689, 5639760), (3720, 5592762), (3730, 5577768), (3780, 5503988), (3906, 5326440), (3920, 5307417), (4080, 5099283), (4165, 4995216), (4185, 4971344), (4216, 4934790), (4284, 4856460), (4340, 4793796), (4410, 4717704), (4464, 4660635), (4476, 4648140), (4557, 4565520), (4590, 4532696), (4743, 4386480), (4760, 4370814), (4998, 4162680), (5040, 4127991), (5208, 3994830), (5222, 3984120), (5270, 3947832), (5292, 3931420), (5355, 3885168), (5580, 3728508), (5595, 3718512), (5712, 3642345), (5859, 3550960), (5880, 3538278), (5968, 3486105), (6076, 3424140), (6120, 3399522), (6324, 3289860), (6341, 3281040), (6426, 3237640), (6510, 3195864), (6615, 3145136), (6664, 3122010), (6696, 3107090), (6714, 3098760), (7056, 2948565), (7140, 2913876), (7344, 2832935), (7378, 2819880), (7440, 2796381), (7460, 2788884), (7497, 2775120), (7560, 2751994), (7595, 2739312), (7812, 2663220), (7833, 2656080), (7905, 2631888), (8330, 2497608), (8370, 2485672), (8432, 2467395), (8568, 2428230), (8680, 2396898), (8820, 2358852), (8952, 2324070), (9114, 2282760), (9180, 2266348), (9486, 2193240), (9520, 2185407), (9765, 2130576), (9996, 2081340), (10071, 2065840), (10416, 1997415), (10444, 1992060), (10540, 1973916), (10584, 1965710), (10710, 1942584), (11067, 1879920), (11160, 1864254), (11190, 1859256), (11563, 1799280), (11718, 1775480), (11760, 1769139), (12152, 1712070), (12240, 1699761), (12495, 1665072), (12648, 1644930), (12682, 1640520), (12852, 1618820), (13020, 1597932), (13055, 1593648), (13230, 1572568), (13328, 1561005), (13392, 1553545), (13428, 1549380), (13671, 1521840), (14229, 1462160), (14280, 1456938), (14756, 1409940), (14920, 1394442), (14994, 1387560), (15120, 1375997), (15190, 1369656), (15624, 1331610), (15666, 1328040), (15810, 1315944), (16065, 1295056), (16660, 1248804), (16740, 1242836), (16785, 1239504), (17136, 1214115), (17360, 1198449), (17640, 1179426), (17904, 1162035), (18228, 1141380), (18277, 1138320), (18360, 1133174), (18445, 1127952), (18972, 1096620), (19023, 1093680), (19530, 1065288), (19992, 1040670), (20142, 1032920), (20888, 996030), (21080, 986958), (21168, 982855), (21420, 971292), (22134, 939960), (22320, 932127), (22380, 929628), (22491, 925040), (22785, 913104), (23126, 899640), (23436, 887740), (23499, 885360), (23715, 877296), (24304, 856035), (24990, 832536), (25296, 822465), (25364, 820260), (25704, 809410), (25823, 805680), (26040, 798966), (26110, 796824), (26460, 786284), (26856, 774690), (27342, 760920), (28458, 731080), (28560, 728469), (29295, 710192), (29512, 704970), (29840, 697221), (29988, 693780), (30380, 684828), (31248, 665805), (31332, 664020), (31620, 657972), (31705, 656208), (32130, 647528), (33201, 626640), (33320, 624402), (33480, 621418), (33570, 619752), (34689, 599760), (35280, 589713), (36456, 570690), (36554, 569160), (36720, 566587), (36890, 563976), (37485, 555024), (37944, 548310), (38046, 546840), (39060, 532644), (39165, 531216), (39984, 520335), (40284, 516460), (41013, 507280), (41776, 498015), (42160, 493479), (42840, 485646), (44268, 469980), (44387, 468720), (44760, 464814), (44982, 462520), (45570, 456552), (46252, 449820), (46872, 443870), (46998, 442680), (47430, 438648), (49980, 416268), (50355, 413168), (50728, 410130), (51408, 404705), (51646, 402840), (52080, 399483), (52220, 398412), (52920, 393142), (53712, 387345), (54684, 380460), (54831, 379440), (55335, 375984), (56916, 365540), (57069, 364560), (57815, 359856), (58590, 355096), (59024, 352485), (59976, 346890), (60760, 342414), (62664, 332010), (63240, 328986), (63410, 328104), (64260, 323764), (66402, 313320), (66640, 312201), (66960, 310709), (67140, 309876), (68355, 304368), (69378, 299880), (70497, 295120), (71145, 292432), (72912, 285345), (73108, 284580), (73780, 281988), (74970, 277512), (75888, 274155), (76092, 273420), (77469, 268560), (78120, 266322), (78330, 265608), (80568, 258230), (80941, 257040), (82026, 253640), (85680, 242823), (88536, 234990), (88774, 234360), (89520, 232407), (89964, 231260), (91140, 228276), (91385, 227664), (92504, 224910), (93744, 221935), (93996, 221340), (94860, 219324), (95115, 218736), (99603, 208880), (99960, 208134), (100710, 206584), (101456, 205065), (103292, 201420), (104067, 199920), (104440, 199206), (105840, 196571), (109368, 190230), (109662, 189720), (110670, 187992), (112455, 185008), (113832, 182770), (114138, 182280), (115630, 179928), (117180, 177548), (117495, 177072), (119952, 173445), (121520, 171207), (125328, 166005), (126480, 164493), (126820, 164052), (128520, 161882), (129115, 161136), (132804, 156660), (133161, 156240), (134280, 154938), (136710, 152184), (138756, 149940), (140994, 147560), (142290, 146216)]