20400848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98081}}^1$

素因数の和:98102

約数の個数: 20

約数和(自身を含む): 42567588

約数和(自身を除く): 22166740

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98081, 196162, 392324, 784648, 1275053, 1569296, 2550106, 5100212, 10200424, 20400848]

約数ペア:

[(1, 20400848), (2, 10200424), (4, 5100212), (8, 2550106), (13, 1569296), (16, 1275053), (26, 784648), (52, 392324), (104, 196162), (208, 98081)]