520025

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:113

約数の個数: 24

約数和(自身を含む): 738048

約数和(自身を除く): 218023

約数列:

[1, 5, 11, 25, 31, 55, 61, 155, 275, 305, 341, 671, 775, 1525, 1705, 1891, 3355, 8525, 9455, 16775, 20801, 47275, 104005, 520025]

約数ペア:

[(1, 520025), (5, 104005), (11, 47275), (25, 20801), (31, 16775), (55, 9455), (61, 8525), (155, 3355), (275, 1891), (305, 1705), (341, 1525), (671, 775)]