31491020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{143141}}^1$

素因数の和:143161

約数の個数: 24

約数和(自身を含む): 72143568

約数和(自身を除く): 40652548

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 143141, 286282, 572564, 715705, 1431410, 1574551, 2862820, 3149102, 6298204, 7872755, 15745510, 31491020]

約数ペア:

[(1, 31491020), (2, 15745510), (4, 7872755), (5, 6298204), (10, 3149102), (11, 2862820), (20, 1574551), (22, 1431410), (44, 715705), (55, 572564), (110, 286282), (220, 143141)]