40398625

素因数分解:

$5^3\times {\mathrm{79}}^1\times {\mathrm{4091}}^1$

素因数の和:4185

約数の個数: 16

約数和(自身を含む): 51068160

約数和(自身を除く): 10669535

約数列:

[1, 5, 25, 79, 125, 395, 1975, 4091, 9875, 20455, 102275, 323189, 511375, 1615945, 8079725, 40398625]

約数ペア:

[(1, 40398625), (5, 8079725), (25, 1615945), (79, 511375), (125, 323189), (395, 102275), (1975, 20455), (4091, 9875)]