205650125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{727}}^1$

素因数の和:846

約数の個数: 32

約数和(自身を含む): 268929024

約数和(自身を除く): 63278899

約数列:

[1, 5, 25, 31, 73, 125, 155, 365, 727, 775, 1825, 2263, 3635, 3875, 9125, 11315, 18175, 22537, 53071, 56575, 90875, 112685, 265355, 282875, 563425, 1326775, 1645201, 2817125, 6633875, 8226005, 41130025, 205650125]

約数ペア:

[(1, 205650125), (5, 41130025), (25, 8226005), (31, 6633875), (73, 2817125), (125, 1645201), (155, 1326775), (365, 563425), (727, 282875), (775, 265355), (1825, 112685), (2263, 90875), (3635, 56575), (3875, 53071), (9125, 22537), (11315, 18175)]