20815707640

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{73}}^1$

素因数の和:180

約数の個数: 576

約数和(自身を含む): 64796578560

約数和(自身を除く): 43980870920

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 19, 20, 26, 28, 31, 35, 38, 40, 49, 52, 56, 62, 65, 70, 73, 76, 91, 95, 98, 104, 124, 130, 133, 140, 146, 152, 155, 182, 190, 196, 217, 245, 247, 248, 260, 266, 280, 292, 310, 361, 364, 365, 380, 392, 403, 434, 455, 490, 494, 511, 520, 532, 584, 589, 620, 637, 665, 722, 728, 730, 760, 806, 868, 910, 931, 949, 980, 988, 1022, 1064, 1085, 1178, 1235, 1240, 1274, 1330, 1387, 1444, 1460, 1519, 1612, 1729, 1736, 1805, 1820, 1862, 1898, 1960, 1976, 2015, 2044, 2170, 2263, 2356, 2470, 2527, 2548, 2555, 2660, 2774, 2821, 2888, 2920, 2945, 3038, 3185, 3224, 3458, 3577, 3610, 3640, 3724, 3796, 4030, 4088, 4123, 4340, 4526, 4655, 4693, 4712, 4745, 4940, 5054, 5096, 5110, 5320, 5548, 5642, 5890, 6076, 6370, 6643, 6916, 6935, 7154, 7220, 7448, 7592, 7595, 7657, 8060, 8246, 8645, 8680, 9052, 9310, 9386, 9490, 9709, 9880, 10108, 10220, 11096, 11191, 11284, 11315, 11780, 12103, 12152, 12635, 12740, 13286, 13832, 13870, 14105, 14308, 14440, 15190, 15314, 15841, 16120, 16492, 17290, 17689, 17885, 18031, 18104, 18620, 18772, 18980, 19418, 19747, 20216, 20440, 20615, 22382, 22568, 22630, 23465, 23560, 24206, 25270, 25480, 26353, 26572, 27740, 28210, 28616, 28861, 29419, 30380, 30628, 31682, 32851, 32984, 33215, 34580, 35378, 35770, 36062, 37240, 37544, 37960, 38285, 38836, 39494, 41230, 42997, 44764, 45260, 46501, 46930, 48412, 48545, 50540, 52706, 53144, 53599, 55480, 55955, 56420, 57722, 58838, 60515, 60760, 61256, 63364, 65702, 66430, 67963, 69160, 70756, 71540, 72124, 76570, 77672, 78337, 78988, 79205, 82460, 85994, 88445, 89528, 90155, 90520, 93002, 93860, 96824, 97090, 98735, 101080, 105412, 107198, 110887, 111910, 112840, 115444, 117676, 121030, 126217, 126728, 131404, 131765, 132860, 135926, 141512, 143080, 144248, 144305, 145483, 147095, 153140, 156674, 157976, 158410, 164255, 164920, 171988, 176890, 180310, 184471, 186004, 187720, 194180, 197470, 205933, 210824, 214396, 214985, 221774, 223820, 229957, 230888, 232505, 235352, 242060, 252434, 262808, 263530, 265720, 267995, 271852, 288610, 290966, 294190, 300979, 306280, 313348, 316820, 328510, 339815, 342589, 343976, 353780, 360620, 368942, 372008, 375193, 388360, 391685, 394940, 411866, 428792, 429970, 443548, 447640, 459914, 465010, 484120, 504868, 527060, 535990, 543704, 548359, 554435, 558961, 577220, 581932, 588380, 601958, 626696, 631085, 633640, 657020, 679630, 685178, 707560, 721240, 727415, 737884, 750386, 783370, 789880, 816943, 823732, 859940, 883519, 887096, 919828, 922355, 930020, 1009736, 1018381, 1029665, 1054120, 1071980, 1096718, 1108870, 1117922, 1149785, 1154440, 1163864, 1176760, 1203916, 1262170, 1291297, 1314040, 1359260, 1370356, 1441531, 1454830, 1475768, 1500772, 1504895, 1566740, 1633886, 1647464, 1712945, 1719880, 1767038, 1839656, 1844710, 1860040, 1875965, 2036762, 2059330, 2106853, 2143960, 2193436, 2217740, 2235844, 2299570, 2398123, 2407832, 2524340, 2582594, 2718520, 2740712, 2741795, 2794805, 2883062, 2909660, 3001544, 3009790, 3133480, 3267772, 3425890, 3534076, 3689420, 3751930, 3912727, 4073524, 4084715, 4118660, 4213706, 4386872, 4417595, 4435480, 4471688, 4599140, 4796246, 5048680, 5091905, 5165188, 5483590, 5589610, 5718601, 5766124, 5819320, 6019580, 6456485, 6535544, 6851780, 7068152, 7128667, 7207655, 7378840, 7503860, 7825454, 8147048, 8169430, 8237320, 8427412, 8835190, 9198280, 9592492, 10183810, 10330376, 10534265, 10620259, 10967180, 11179220, 11437202, 11532248, 11990615, 12039160, 12912970, 13703560, 14257334, 14415310, 15007720, 15650908, 16338860, 16786861, 16854824, 17670380, 19184984, 19563635, 20367620, 21068530, 21240518, 21934360, 22358440, 22874404, 23981230, 25825940, 27389089, 28514668, 28593005, 28830620, 31301816, 32677720, 33573722, 35340760, 35643335, 39127270, 40030207, 40735240, 42137060, 42481036, 45748808, 47962460, 51651880, 53101295, 54778178, 57029336, 57186010, 57661240, 67147444, 71286670, 74341813, 78254540, 80060414, 83934305, 84274120, 84962072, 95924920, 106202590, 109556356, 114372020, 134294888, 136945445, 142573340, 148683626, 156509080, 160120828, 167868610, 200151035, 212405180, 219112712, 228744040, 273890890, 285146680, 297367252, 320241656, 335737220, 371709065, 400302070, 424810360, 520392691, 547781780, 594734504, 671474440, 743418130, 800604140, 1040785382, 1095563560, 1486836260, 1601208280, 2081570764, 2601963455, 2973672520, 4163141528, 5203926910, 10407853820, 20815707640]

約数ペア:

[(1, 20815707640), (2, 10407853820), (4, 5203926910), (5, 4163141528), (7, 2973672520), (8, 2601963455), (10, 2081570764), (13, 1601208280), (14, 1486836260), (19, 1095563560), (20, 1040785382), (26, 800604140), (28, 743418130), (31, 671474440), (35, 594734504), (38, 547781780), (40, 520392691), (49, 424810360), (52, 400302070), (56, 371709065), (62, 335737220), (65, 320241656), (70, 297367252), (73, 285146680), (76, 273890890), (91, 228744040), (95, 219112712), (98, 212405180), (104, 200151035), (124, 167868610), (130, 160120828), (133, 156509080), (140, 148683626), (146, 142573340), (152, 136945445), (155, 134294888), (182, 114372020), (190, 109556356), (196, 106202590), (217, 95924920), (245, 84962072), (247, 84274120), (248, 83934305), (260, 80060414), (266, 78254540), (280, 74341813), (292, 71286670), (310, 67147444), (361, 57661240), (364, 57186010), (365, 57029336), (380, 54778178), (392, 53101295), (403, 51651880), (434, 47962460), (455, 45748808), (490, 42481036), (494, 42137060), (511, 40735240), (520, 40030207), (532, 39127270), (584, 35643335), (589, 35340760), (620, 33573722), (637, 32677720), (665, 31301816), (722, 28830620), (728, 28593005), (730, 28514668), (760, 27389089), (806, 25825940), (868, 23981230), (910, 22874404), (931, 22358440), (949, 21934360), (980, 21240518), (988, 21068530), (1022, 20367620), (1064, 19563635), (1085, 19184984), (1178, 17670380), (1235, 16854824), (1240, 16786861), (1274, 16338860), (1330, 15650908), (1387, 15007720), (1444, 14415310), (1460, 14257334), (1519, 13703560), (1612, 12912970), (1729, 12039160), (1736, 11990615), (1805, 11532248), (1820, 11437202), (1862, 11179220), (1898, 10967180), (1960, 10620259), (1976, 10534265), (2015, 10330376), (2044, 10183810), (2170, 9592492), (2263, 9198280), (2356, 8835190), (2470, 8427412), (2527, 8237320), (2548, 8169430), (2555, 8147048), (2660, 7825454), (2774, 7503860), (2821, 7378840), (2888, 7207655), (2920, 7128667), (2945, 7068152), (3038, 6851780), (3185, 6535544), (3224, 6456485), (3458, 6019580), (3577, 5819320), (3610, 5766124), (3640, 5718601), (3724, 5589610), (3796, 5483590), (4030, 5165188), (4088, 5091905), (4123, 5048680), (4340, 4796246), (4526, 4599140), (4655, 4471688), (4693, 4435480), (4712, 4417595), (4745, 4386872), (4940, 4213706), (5054, 4118660), (5096, 4084715), (5110, 4073524), (5320, 3912727), (5548, 3751930), (5642, 3689420), (5890, 3534076), (6076, 3425890), (6370, 3267772), (6643, 3133480), (6916, 3009790), (6935, 3001544), (7154, 2909660), (7220, 2883062), (7448, 2794805), (7592, 2741795), (7595, 2740712), (7657, 2718520), (8060, 2582594), (8246, 2524340), (8645, 2407832), (8680, 2398123), (9052, 2299570), (9310, 2235844), (9386, 2217740), (9490, 2193436), (9709, 2143960), (9880, 2106853), (10108, 2059330), (10220, 2036762), (11096, 1875965), (11191, 1860040), (11284, 1844710), (11315, 1839656), (11780, 1767038), (12103, 1719880), (12152, 1712945), (12635, 1647464), (12740, 1633886), (13286, 1566740), (13832, 1504895), (13870, 1500772), (14105, 1475768), (14308, 1454830), (14440, 1441531), (15190, 1370356), (15314, 1359260), (15841, 1314040), (16120, 1291297), (16492, 1262170), (17290, 1203916), (17689, 1176760), (17885, 1163864), (18031, 1154440), (18104, 1149785), (18620, 1117922), (18772, 1108870), (18980, 1096718), (19418, 1071980), (19747, 1054120), (20216, 1029665), (20440, 1018381), (20615, 1009736), (22382, 930020), (22568, 922355), (22630, 919828), (23465, 887096), (23560, 883519), (24206, 859940), (25270, 823732), (25480, 816943), (26353, 789880), (26572, 783370), (27740, 750386), (28210, 737884), (28616, 727415), (28861, 721240), (29419, 707560), (30380, 685178), (30628, 679630), (31682, 657020), (32851, 633640), (32984, 631085), (33215, 626696), (34580, 601958), (35378, 588380), (35770, 581932), (36062, 577220), (37240, 558961), (37544, 554435), (37960, 548359), (38285, 543704), (38836, 535990), (39494, 527060), (41230, 504868), (42997, 484120), (44764, 465010), (45260, 459914), (46501, 447640), (46930, 443548), (48412, 429970), (48545, 428792), (50540, 411866), (52706, 394940), (53144, 391685), (53599, 388360), (55480, 375193), (55955, 372008), (56420, 368942), (57722, 360620), (58838, 353780), (60515, 343976), (60760, 342589), (61256, 339815), (63364, 328510), (65702, 316820), (66430, 313348), (67963, 306280), (69160, 300979), (70756, 294190), (71540, 290966), (72124, 288610), (76570, 271852), (77672, 267995), (78337, 265720), (78988, 263530), (79205, 262808), (82460, 252434), (85994, 242060), (88445, 235352), (89528, 232505), (90155, 230888), (90520, 229957), (93002, 223820), (93860, 221774), (96824, 214985), (97090, 214396), (98735, 210824), (101080, 205933), (105412, 197470), (107198, 194180), (110887, 187720), (111910, 186004), (112840, 184471), (115444, 180310), (117676, 176890), (121030, 171988), (126217, 164920), (126728, 164255), (131404, 158410), (131765, 157976), (132860, 156674), (135926, 153140), (141512, 147095), (143080, 145483), (144248, 144305)]