57639980

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{191}}^2$

素因数の和:470

約数の個数: 36

約数和(自身を含む): 123221280

約数和(自身を除く): 65581300

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 191, 316, 382, 395, 764, 790, 955, 1580, 1910, 3820, 15089, 30178, 36481, 60356, 72962, 75445, 145924, 150890, 182405, 301780, 364810, 729620, 2881999, 5763998, 11527996, 14409995, 28819990, 57639980]

約数ペア:

[(1, 57639980), (2, 28819990), (4, 14409995), (5, 11527996), (10, 5763998), (20, 2881999), (79, 729620), (158, 364810), (191, 301780), (316, 182405), (382, 150890), (395, 145924), (764, 75445), (790, 72962), (955, 60356), (1580, 36481), (1910, 30178), (3820, 15089)]