89857640

素因数分解:

$2^3\times 5^1\times {\mathrm{691}}^1\times {\mathrm{3251}}^1$

素因数の和:3953

約数の個数: 32

約数和(自身を含む): 202534560

約数和(自身を除く): 112676920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 691, 1382, 2764, 3251, 3455, 5528, 6502, 6910, 13004, 13820, 16255, 26008, 27640, 32510, 65020, 130040, 2246441, 4492882, 8985764, 11232205, 17971528, 22464410, 44928820, 89857640]

約数ペア:

[(1, 89857640), (2, 44928820), (4, 22464410), (5, 17971528), (8, 11232205), (10, 8985764), (20, 4492882), (40, 2246441), (691, 130040), (1382, 65020), (2764, 32510), (3251, 27640), (3455, 26008), (5528, 16255), (6502, 13820), (6910, 13004)]