20858260

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{3877}}^1$

素因数の和:4155

約数の個数: 24

約数和(自身を含む): 43976520

約数和(自身を除く): 23118260

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 3877, 5380, 7754, 15508, 19385, 38770, 77540, 1042913, 2085826, 4171652, 5214565, 10429130, 20858260]

約数ペア:

[(1, 20858260), (2, 10429130), (4, 5214565), (5, 4171652), (10, 2085826), (20, 1042913), (269, 77540), (538, 38770), (1076, 19385), (1345, 15508), (2690, 7754), (3877, 5380)]