67900625

素因数分解:

$5^4\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:231

約数の個数: 40

約数和(自身を含む): 93551304

約数和(自身を除く): 25650679

約数列:

[1, 5, 13, 25, 61, 65, 125, 137, 305, 325, 625, 685, 793, 1525, 1625, 1781, 3425, 3965, 7625, 8125, 8357, 8905, 17125, 19825, 38125, 41785, 44525, 85625, 99125, 108641, 208925, 222625, 495625, 543205, 1044625, 1113125, 2716025, 5223125, 13580125, 67900625]

約数ペア:

[(1, 67900625), (5, 13580125), (13, 5223125), (25, 2716025), (61, 1113125), (65, 1044625), (125, 543205), (137, 495625), (305, 222625), (325, 208925), (625, 108641), (685, 99125), (793, 85625), (1525, 44525), (1625, 41785), (1781, 38125), (3425, 19825), (3965, 17125), (7625, 8905), (8125, 8357)]