80317120

素因数分解:

$2^6\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:522

約数の個数: 112

約数和(自身を含む): 211226400

約数和(自身を除く): 130909280

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 32, 40, 43, 52, 64, 65, 80, 86, 104, 130, 160, 172, 208, 215, 260, 320, 344, 416, 430, 449, 520, 559, 688, 832, 860, 898, 1040, 1118, 1376, 1720, 1796, 2080, 2236, 2245, 2752, 2795, 3440, 3592, 4160, 4472, 4490, 5590, 5837, 6880, 7184, 8944, 8980, 11180, 11674, 13760, 14368, 17888, 17960, 19307, 22360, 23348, 28736, 29185, 35776, 35920, 38614, 44720, 46696, 58370, 71840, 77228, 89440, 93392, 96535, 116740, 143680, 154456, 178880, 186784, 193070, 233480, 250991, 308912, 373568, 386140, 466960, 501982, 617824, 772280, 933920, 1003964, 1235648, 1254955, 1544560, 1867840, 2007928, 2509910, 3089120, 4015856, 5019820, 6178240, 8031712, 10039640, 16063424, 20079280, 40158560, 80317120]

約数ペア:

[(1, 80317120), (2, 40158560), (4, 20079280), (5, 16063424), (8, 10039640), (10, 8031712), (13, 6178240), (16, 5019820), (20, 4015856), (26, 3089120), (32, 2509910), (40, 2007928), (43, 1867840), (52, 1544560), (64, 1254955), (65, 1235648), (80, 1003964), (86, 933920), (104, 772280), (130, 617824), (160, 501982), (172, 466960), (208, 386140), (215, 373568), (260, 308912), (320, 250991), (344, 233480), (416, 193070), (430, 186784), (449, 178880), (520, 154456), (559, 143680), (688, 116740), (832, 96535), (860, 93392), (898, 89440), (1040, 77228), (1118, 71840), (1376, 58370), (1720, 46696), (1796, 44720), (2080, 38614), (2236, 35920), (2245, 35776), (2752, 29185), (2795, 28736), (3440, 23348), (3592, 22360), (4160, 19307), (4472, 17960), (4490, 17888), (5590, 14368), (5837, 13760), (6880, 11674), (7184, 11180), (8944, 8980)]