18718325

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{251}}^1$

素因数の和:437

約数の個数: 24

約数和(自身を含む): 24685920

約数和(自身を除く): 5967595

約数列:

[1, 5, 19, 25, 95, 157, 251, 475, 785, 1255, 2983, 3925, 4769, 6275, 14915, 23845, 39407, 74575, 119225, 197035, 748733, 985175, 3743665, 18718325]

約数ペア:

[(1, 18718325), (5, 3743665), (19, 985175), (25, 748733), (95, 197035), (157, 119225), (251, 74575), (475, 39407), (785, 23845), (1255, 14915), (2983, 6275), (3925, 4769)]