287380025

素因数分解:

$5^2\times {\mathrm{149}}^1\times {\mathrm{179}}^1\times {\mathrm{431}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 361584000

約数和(自身を除く): 74203975

約数列:

[1, 5, 25, 149, 179, 431, 745, 895, 2155, 3725, 4475, 10775, 26671, 64219, 77149, 133355, 321095, 385745, 666775, 1605475, 1928725, 11495201, 57476005, 287380025]

約数ペア:

[(1, 287380025), (5, 57476005), (25, 11495201), (149, 1928725), (179, 1605475), (431, 666775), (745, 385745), (895, 321095), (2155, 133355), (3725, 77149), (4475, 64219), (10775, 26671)]