20115217915

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{421}}^1\times {\mathrm{735071}}^1$

素因数の和:735510

約数の個数: 16

約数和(自身を含む): 26056832256

約数和(自身を除く): 5941614341

約数列:

[1, 5, 13, 65, 421, 2105, 5473, 27365, 735071, 3675355, 9555923, 47779615, 309464891, 1547324455, 4023043583, 20115217915]

約数ペア:

[(1, 20115217915), (5, 4023043583), (13, 1547324455), (65, 309464891), (421, 47779615), (2105, 9555923), (5473, 3675355), (27365, 735071)]