20628625

素因数分解:

$5^3\times {\mathrm{227}}^1\times {\mathrm{727}}^1$

素因数の和:969

約数の個数: 16

約数和(自身を含む): 25893504

約数和(自身を除く): 5264879

約数列:

[1, 5, 25, 125, 227, 727, 1135, 3635, 5675, 18175, 28375, 90875, 165029, 825145, 4125725, 20628625]

約数ペア:

[(1, 20628625), (5, 4125725), (25, 825145), (125, 165029), (227, 90875), (727, 28375), (1135, 18175), (3635, 5675)]