20404764250

素因数分解:

$2^1\times 5^3\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{28409}}^1$

素因数の和:28469

約数の個数: 96

約数和(自身を含む): 43796628720

約数和(自身を除く): 23391864470

約数列:

[1, 2, 5, 10, 13, 17, 25, 26, 34, 50, 65, 85, 125, 130, 169, 170, 221, 250, 325, 338, 425, 442, 650, 845, 850, 1105, 1625, 1690, 2125, 2210, 2873, 3250, 4225, 4250, 5525, 5746, 8450, 11050, 14365, 21125, 27625, 28409, 28730, 42250, 55250, 56818, 71825, 142045, 143650, 284090, 359125, 369317, 482953, 710225, 718250, 738634, 965906, 1420450, 1846585, 2414765, 3551125, 3693170, 4801121, 4829530, 6278389, 7102250, 9232925, 9602242, 12073825, 12556778, 18465850, 24005605, 24147650, 31391945, 46164625, 48011210, 60369125, 62783890, 81619057, 92329250, 120028025, 120738250, 156959725, 163238114, 240056050, 313919450, 408095285, 600140125, 784798625, 816190570, 1200280250, 1569597250, 2040476425, 4080952850, 10202382125, 20404764250]

約数ペア:

[(1, 20404764250), (2, 10202382125), (5, 4080952850), (10, 2040476425), (13, 1569597250), (17, 1200280250), (25, 816190570), (26, 784798625), (34, 600140125), (50, 408095285), (65, 313919450), (85, 240056050), (125, 163238114), (130, 156959725), (169, 120738250), (170, 120028025), (221, 92329250), (250, 81619057), (325, 62783890), (338, 60369125), (425, 48011210), (442, 46164625), (650, 31391945), (845, 24147650), (850, 24005605), (1105, 18465850), (1625, 12556778), (1690, 12073825), (2125, 9602242), (2210, 9232925), (2873, 7102250), (3250, 6278389), (4225, 4829530), (4250, 4801121), (5525, 3693170), (5746, 3551125), (8450, 2414765), (11050, 1846585), (14365, 1420450), (21125, 965906), (27625, 738634), (28409, 718250), (28730, 710225), (42250, 482953), (55250, 369317), (56818, 359125), (71825, 284090), (142045, 143650)]