20123545

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4241}}^1$

素因数の和:4332

約数の個数: 16

約数和(自身を含む): 26368272

約数和(自身を除く): 6244727

約数列:

[1, 5, 13, 65, 73, 365, 949, 4241, 4745, 21205, 55133, 275665, 309593, 1547965, 4024709, 20123545]

約数ペア:

[(1, 20123545), (5, 4024709), (13, 1547965), (65, 309593), (73, 275665), (365, 55133), (949, 21205), (4241, 4745)]