257508898

素因数分解:

$2^1\times {\mathrm{139}}^1\times {\mathrm{557}}^1\times {\mathrm{1663}}^1$

素因数の和:2361

約数の個数: 16

約数和(自身を含む): 389975040

約数和(自身を除く): 132466142

約数列:

[1, 2, 139, 278, 557, 1114, 1663, 3326, 77423, 154846, 231157, 462314, 926291, 1852582, 128754449, 257508898]

約数ペア:

[(1, 257508898), (2, 128754449), (139, 1852582), (278, 926291), (557, 462314), (1114, 231157), (1663, 154846), (3326, 77423)]