20457420908

素因数分解:

$2^2\times {\mathrm{157}}^1\times {\mathrm{32575511}}^1$

素因数の和:32575672

約数の個数: 12

約数和(自身を含む): 36028516272

約数和(自身を除く): 15571095364

約数列:

[1, 2, 4, 157, 314, 628, 32575511, 65151022, 130302044, 5114355227, 10228710454, 20457420908]

約数ペア:

[(1, 20457420908), (2, 10228710454), (4, 5114355227), (157, 130302044), (314, 65151022), (628, 32575511)]