81415175

素因数分解:

$5^2\times {\mathrm{61}}^1\times {\mathrm{197}}^1\times {\mathrm{271}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 103511232

約数和(自身を除く): 22096057

約数列:

[1, 5, 25, 61, 197, 271, 305, 985, 1355, 1525, 4925, 6775, 12017, 16531, 53387, 60085, 82655, 266935, 300425, 413275, 1334675, 3256607, 16283035, 81415175]

約数ペア:

[(1, 81415175), (5, 16283035), (25, 3256607), (61, 1334675), (197, 413275), (271, 300425), (305, 266935), (985, 82655), (1355, 60085), (1525, 53387), (4925, 16531), (6775, 12017)]