128475790

素因数分解:

$2^1\times 5^1\times {\mathrm{211}}^1\times {\mathrm{60889}}^1$

素因数の和:61107

約数の個数: 16

約数和(自身を含む): 232356240

約数和(自身を除く): 103880450

約数列:

[1, 2, 5, 10, 211, 422, 1055, 2110, 60889, 121778, 304445, 608890, 12847579, 25695158, 64237895, 128475790]

約数ペア:

[(1, 128475790), (2, 64237895), (5, 25695158), (10, 12847579), (211, 608890), (422, 304445), (1055, 121778), (2110, 60889)]