20280265

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{211}}^1\times {\mathrm{409}}^1$

素因数の和:672

約数の個数: 16

約数和(自身を含む): 25032960

約数和(自身を除く): 4752695

約数列:

[1, 5, 47, 211, 235, 409, 1055, 2045, 9917, 19223, 49585, 86299, 96115, 431495, 4056053, 20280265]

約数ペア:

[(1, 20280265), (5, 4056053), (47, 431495), (211, 96115), (235, 86299), (409, 49585), (1055, 19223), (2045, 9917)]