20694820

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9157}}^1$

素因数の和:9279

約数の個数: 24

約数和(自身を含む): 43848504

約数和(自身を除く): 23153684

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9157, 18314, 36628, 45785, 91570, 183140, 1034741, 2069482, 4138964, 5173705, 10347410, 20694820]

約数ペア:

[(1, 20694820), (2, 10347410), (4, 5173705), (5, 4138964), (10, 2069482), (20, 1034741), (113, 183140), (226, 91570), (452, 45785), (565, 36628), (1130, 18314), (2260, 9157)]