20388474080

素因数分解:

$2^5\times 5^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:270

約数の個数: 384

約数和(自身を含む): 55956168576

約数和(自身を除く): 35567694496

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 37, 40, 43, 52, 61, 65, 74, 80, 86, 101, 104, 122, 130, 148, 160, 172, 185, 202, 208, 215, 244, 260, 296, 305, 344, 370, 404, 416, 430, 481, 488, 505, 520, 559, 592, 610, 688, 740, 793, 808, 860, 962, 976, 1010, 1040, 1118, 1184, 1220, 1313, 1376, 1480, 1586, 1591, 1616, 1720, 1924, 1952, 2020, 2080, 2236, 2257, 2405, 2440, 2623, 2626, 2795, 2960, 3172, 3182, 3232, 3440, 3737, 3848, 3965, 4040, 4343, 4472, 4514, 4810, 4880, 5246, 5252, 5590, 5920, 6161, 6344, 6364, 6565, 6880, 7474, 7696, 7930, 7955, 8080, 8686, 8944, 9028, 9620, 9760, 10492, 10504, 11180, 11285, 12322, 12688, 12728, 13115, 13130, 14948, 15392, 15860, 15910, 16160, 17372, 17888, 18056, 18685, 19240, 20683, 20984, 21008, 21715, 22360, 22570, 24644, 25376, 25456, 26230, 26260, 29341, 29896, 30805, 31720, 31820, 34099, 34744, 36112, 37370, 38480, 41366, 41968, 42016, 43430, 44720, 45140, 48581, 49288, 50912, 52460, 52520, 56459, 58682, 59792, 61610, 63440, 63640, 68198, 69488, 72224, 74740, 76960, 80093, 82732, 83936, 86860, 89440, 90280, 97051, 97162, 98576, 103415, 104920, 105040, 112918, 117364, 119584, 123220, 126880, 127280, 136396, 138976, 146705, 149480, 160186, 160691, 165464, 170495, 173720, 180560, 194102, 194324, 197152, 206830, 209840, 210080, 225836, 227957, 234728, 242905, 246440, 254560, 264923, 272792, 282295, 293410, 298960, 320372, 321382, 330928, 340990, 347440, 361120, 388204, 388648, 400465, 413660, 419680, 451672, 455914, 469456, 485255, 485810, 492880, 529846, 545584, 564590, 586820, 597920, 640744, 642764, 661856, 681980, 694880, 776408, 777296, 800930, 803455, 827320, 903344, 911828, 938912, 970510, 971620, 985760, 1059692, 1091168, 1129180, 1139785, 1173640, 1261663, 1281488, 1285528, 1324615, 1363960, 1552816, 1554592, 1601860, 1606910, 1654640, 1806688, 1823656, 1941020, 1943240, 2088983, 2119384, 2258360, 2279570, 2347280, 2523326, 2562976, 2571056, 2649230, 2727920, 2963441, 3105632, 3203720, 3213820, 3309280, 3443999, 3647312, 3882040, 3886480, 4177966, 4238768, 4516720, 4559140, 4694560, 5046652, 5142112, 5298460, 5455840, 5926882, 6308315, 6407440, 6427640, 6887998, 7294624, 7764080, 7772960, 8355932, 8477536, 9033440, 9118280, 9802151, 10093304, 10444915, 10596920, 11853764, 12616630, 12814880, 12855280, 13775996, 14817205, 15528160, 16711864, 17219995, 18236560, 19604302, 20186608, 20889830, 21193840, 23707528, 25233260, 25710560, 27551992, 29634410, 33423728, 34439990, 36473120, 39208604, 40373216, 41779660, 42387680, 47415056, 49010755, 50466520, 55103984, 59268820, 66847456, 68879980, 78417208, 83559320, 94830112, 98021510, 100933040, 110207968, 118537640, 127427963, 137759960, 156834416, 167118640, 196043020, 201866080, 237075280, 254855926, 275519920, 313668832, 334237280, 392086040, 474150560, 509711852, 551039840, 637139815, 784172080, 1019423704, 1274279630, 1568344160, 2038847408, 2548559260, 4077694816, 5097118520, 10194237040, 20388474080]

約数ペア:

[(1, 20388474080), (2, 10194237040), (4, 5097118520), (5, 4077694816), (8, 2548559260), (10, 2038847408), (13, 1568344160), (16, 1274279630), (20, 1019423704), (26, 784172080), (32, 637139815), (37, 551039840), (40, 509711852), (43, 474150560), (52, 392086040), (61, 334237280), (65, 313668832), (74, 275519920), (80, 254855926), (86, 237075280), (101, 201866080), (104, 196043020), (122, 167118640), (130, 156834416), (148, 137759960), (160, 127427963), (172, 118537640), (185, 110207968), (202, 100933040), (208, 98021510), (215, 94830112), (244, 83559320), (260, 78417208), (296, 68879980), (305, 66847456), (344, 59268820), (370, 55103984), (404, 50466520), (416, 49010755), (430, 47415056), (481, 42387680), (488, 41779660), (505, 40373216), (520, 39208604), (559, 36473120), (592, 34439990), (610, 33423728), (688, 29634410), (740, 27551992), (793, 25710560), (808, 25233260), (860, 23707528), (962, 21193840), (976, 20889830), (1010, 20186608), (1040, 19604302), (1118, 18236560), (1184, 17219995), (1220, 16711864), (1313, 15528160), (1376, 14817205), (1480, 13775996), (1586, 12855280), (1591, 12814880), (1616, 12616630), (1720, 11853764), (1924, 10596920), (1952, 10444915), (2020, 10093304), (2080, 9802151), (2236, 9118280), (2257, 9033440), (2405, 8477536), (2440, 8355932), (2623, 7772960), (2626, 7764080), (2795, 7294624), (2960, 6887998), (3172, 6427640), (3182, 6407440), (3232, 6308315), (3440, 5926882), (3737, 5455840), (3848, 5298460), (3965, 5142112), (4040, 5046652), (4343, 4694560), (4472, 4559140), (4514, 4516720), (4810, 4238768), (4880, 4177966), (5246, 3886480), (5252, 3882040), (5590, 3647312), (5920, 3443999), (6161, 3309280), (6344, 3213820), (6364, 3203720), (6565, 3105632), (6880, 2963441), (7474, 2727920), (7696, 2649230), (7930, 2571056), (7955, 2562976), (8080, 2523326), (8686, 2347280), (8944, 2279570), (9028, 2258360), (9620, 2119384), (9760, 2088983), (10492, 1943240), (10504, 1941020), (11180, 1823656), (11285, 1806688), (12322, 1654640), (12688, 1606910), (12728, 1601860), (13115, 1554592), (13130, 1552816), (14948, 1363960), (15392, 1324615), (15860, 1285528), (15910, 1281488), (16160, 1261663), (17372, 1173640), (17888, 1139785), (18056, 1129180), (18685, 1091168), (19240, 1059692), (20683, 985760), (20984, 971620), (21008, 970510), (21715, 938912), (22360, 911828), (22570, 903344), (24644, 827320), (25376, 803455), (25456, 800930), (26230, 777296), (26260, 776408), (29341, 694880), (29896, 681980), (30805, 661856), (31720, 642764), (31820, 640744), (34099, 597920), (34744, 586820), (36112, 564590), (37370, 545584), (38480, 529846), (41366, 492880), (41968, 485810), (42016, 485255), (43430, 469456), (44720, 455914), (45140, 451672), (48581, 419680), (49288, 413660), (50912, 400465), (52460, 388648), (52520, 388204), (56459, 361120), (58682, 347440), (59792, 340990), (61610, 330928), (63440, 321382), (63640, 320372), (68198, 298960), (69488, 293410), (72224, 282295), (74740, 272792), (76960, 264923), (80093, 254560), (82732, 246440), (83936, 242905), (86860, 234728), (89440, 227957), (90280, 225836), (97051, 210080), (97162, 209840), (98576, 206830), (103415, 197152), (104920, 194324), (105040, 194102), (112918, 180560), (117364, 173720), (119584, 170495), (123220, 165464), (126880, 160691), (127280, 160186), (136396, 149480), (138976, 146705)]