20184343400

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{1987}}^1\times {\mathrm{3907}}^1$

素因数の和:5923

約数の個数: 96

約数和(自身を含む): 50576867040

約数和(自身を除く): 30392523640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 1987, 2600, 3907, 3974, 7814, 7948, 9935, 15628, 15896, 19535, 19870, 25831, 31256, 39070, 39740, 49675, 50791, 51662, 78140, 79480, 97675, 99350, 101582, 103324, 129155, 156280, 195350, 198700, 203164, 206648, 253955, 258310, 390700, 397400, 406328, 507910, 516620, 645775, 781400, 1015820, 1033240, 1269775, 1291550, 2031640, 2539550, 2583100, 5079100, 5166200, 7763209, 10158200, 15526418, 31052836, 38816045, 62105672, 77632090, 100921717, 155264180, 194080225, 201843434, 310528360, 388160450, 403686868, 504608585, 776320900, 807373736, 1009217170, 1552641800, 2018434340, 2523042925, 4036868680, 5046085850, 10092171700, 20184343400]

約数ペア:

[(1, 20184343400), (2, 10092171700), (4, 5046085850), (5, 4036868680), (8, 2523042925), (10, 2018434340), (13, 1552641800), (20, 1009217170), (25, 807373736), (26, 776320900), (40, 504608585), (50, 403686868), (52, 388160450), (65, 310528360), (100, 201843434), (104, 194080225), (130, 155264180), (200, 100921717), (260, 77632090), (325, 62105672), (520, 38816045), (650, 31052836), (1300, 15526418), (1987, 10158200), (2600, 7763209), (3907, 5166200), (3974, 5079100), (7814, 2583100), (7948, 2539550), (9935, 2031640), (15628, 1291550), (15896, 1269775), (19535, 1033240), (19870, 1015820), (25831, 781400), (31256, 645775), (39070, 516620), (39740, 507910), (49675, 406328), (50791, 397400), (51662, 390700), (78140, 258310), (79480, 253955), (97675, 206648), (99350, 203164), (101582, 198700), (103324, 195350), (129155, 156280)]