289380025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{14821}}^1$

素因数の和:14913

約数の個数: 24

約数和(自身を含む): 396992448

約数和(自身を除く): 107612423

約数列:

[1, 5, 11, 25, 55, 71, 275, 355, 781, 1775, 3905, 14821, 19525, 74105, 163031, 370525, 815155, 1052291, 4075775, 5261455, 11575201, 26307275, 57876005, 289380025]

約数ペア:

[(1, 289380025), (5, 57876005), (11, 26307275), (25, 11575201), (55, 5261455), (71, 4075775), (275, 1052291), (355, 815155), (781, 370525), (1775, 163031), (3905, 74105), (14821, 19525)]