490242575

素因数分解:

$5^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{1987}}^1$

素因数の和:2207

約数の個数: 24

約数和(自身を含む): 621210240

約数和(自身を除く): 130967665

約数列:

[1, 5, 25, 71, 139, 355, 695, 1775, 1987, 3475, 9869, 9935, 49345, 49675, 141077, 246725, 276193, 705385, 1380965, 3526925, 6904825, 19609703, 98048515, 490242575]

約数ペア:

[(1, 490242575), (5, 98048515), (25, 19609703), (71, 6904825), (139, 3526925), (355, 1380965), (695, 705385), (1775, 276193), (1987, 246725), (3475, 141077), (9869, 49675), (9935, 49345)]