19496331380

素因数分解:

$2^2\times 5^1\times {\mathrm{2141}}^1\times {\mathrm{455309}}^1$

素因数の和:457459

約数の個数: 24

約数和(自身を含む): 40961508840

約数和(自身を除く): 21465177460

約数列:

[1, 2, 4, 5, 10, 20, 2141, 4282, 8564, 10705, 21410, 42820, 455309, 910618, 1821236, 2276545, 4553090, 9106180, 974816569, 1949633138, 3899266276, 4874082845, 9748165690, 19496331380]

約数ペア:

[(1, 19496331380), (2, 9748165690), (4, 4874082845), (5, 3899266276), (10, 1949633138), (20, 974816569), (2141, 9106180), (4282, 4553090), (8564, 2276545), (10705, 1821236), (21410, 910618), (42820, 455309)]