131720905

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1\times {\mathrm{2371}}^1$

素因数の和:2688

約数の個数: 16

約数和(自身を含む): 162586368

約数和(自身を除く): 30865463

約数列:

[1, 5, 41, 205, 271, 1355, 2371, 11111, 11855, 55555, 97211, 486055, 642541, 3212705, 26344181, 131720905]

約数ペア:

[(1, 131720905), (5, 26344181), (41, 3212705), (205, 642541), (271, 486055), (1355, 97211), (2371, 55555), (11111, 11855)]