20313445

素因数分解:

$5^1\times {\mathrm{113}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 24856560

約数和(自身を除く): 4543115

約数列:

[1, 5, 113, 157, 229, 565, 785, 1145, 17741, 25877, 35953, 88705, 129385, 179765, 4062689, 20313445]

約数ペア:

[(1, 20313445), (5, 4062689), (113, 179765), (157, 129385), (229, 88705), (565, 35953), (785, 25877), (1145, 17741)]