18875125

素因数分解:

$5^3\times {\mathrm{31}}^1\times {\mathrm{4871}}^1$

素因数の和:4917

約数の個数: 16

約数和(自身を含む): 24321024

約数和(自身を除く): 5445899

約数列:

[1, 5, 25, 31, 125, 155, 775, 3875, 4871, 24355, 121775, 151001, 608875, 755005, 3775025, 18875125]

約数ペア:

[(1, 18875125), (5, 3775025), (25, 755005), (31, 608875), (125, 151001), (155, 121775), (775, 24355), (3875, 4871)]