81076180

素因数分解:

$2^2\times 5^1\times {\mathrm{421}}^1\times {\mathrm{9629}}^1$

素因数の和:10059

約数の個数: 24

約数和(自身を含む): 170682120

約数和(自身を除く): 89605940

約数列:

[1, 2, 4, 5, 10, 20, 421, 842, 1684, 2105, 4210, 8420, 9629, 19258, 38516, 48145, 96290, 192580, 4053809, 8107618, 16215236, 20269045, 40538090, 81076180]

約数ペア:

[(1, 81076180), (2, 40538090), (4, 20269045), (5, 16215236), (10, 8107618), (20, 4053809), (421, 192580), (842, 96290), (1684, 48145), (2105, 38516), (4210, 19258), (8420, 9629)]