19930570

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{409}}^1\times {\mathrm{443}}^1$

素因数の和:870

約数の個数: 32

約数和(自身を含む): 39320640

約数和(自身を除く): 19390070

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 409, 443, 818, 886, 2045, 2215, 4090, 4430, 4499, 4873, 8998, 9746, 22495, 24365, 44990, 48730, 181187, 362374, 905935, 1811870, 1993057, 3986114, 9965285, 19930570]

約数ペア:

[(1, 19930570), (2, 9965285), (5, 3986114), (10, 1993057), (11, 1811870), (22, 905935), (55, 362374), (110, 181187), (409, 48730), (443, 44990), (818, 24365), (886, 22495), (2045, 9746), (2215, 8998), (4090, 4873), (4430, 4499)]