72301775

素因数分解:

$5^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{521}}^1$

素因数の和:612

約数の個数: 48

約数和(自身を含む): 112367808

約数和(自身を除く): 40066033

約数列:

[1, 5, 7, 13, 25, 35, 61, 65, 91, 175, 305, 325, 427, 455, 521, 793, 1525, 2135, 2275, 2605, 3647, 3965, 5551, 6773, 10675, 13025, 18235, 19825, 27755, 31781, 33865, 47411, 91175, 138775, 158905, 169325, 222467, 237055, 413153, 794525, 1112335, 1185275, 2065765, 2892071, 5561675, 10328825, 14460355, 72301775]

約数ペア:

[(1, 72301775), (5, 14460355), (7, 10328825), (13, 5561675), (25, 2892071), (35, 2065765), (61, 1185275), (65, 1112335), (91, 794525), (175, 413153), (305, 237055), (325, 222467), (427, 169325), (455, 158905), (521, 138775), (793, 91175), (1525, 47411), (2135, 33865), (2275, 31781), (2605, 27755), (3647, 19825), (3965, 18235), (5551, 13025), (6773, 10675)]