809340940

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{861001}}^1$

素因数の和:861057

約数の個数: 24

約数和(自身を含む): 1735780032

約数和(自身を除く): 926439092

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 235, 470, 940, 861001, 1722002, 3444004, 4305005, 8610010, 17220020, 40467047, 80934094, 161868188, 202335235, 404670470, 809340940]

約数ペア:

[(1, 809340940), (2, 404670470), (4, 202335235), (5, 161868188), (10, 80934094), (20, 40467047), (47, 17220020), (94, 8610010), (188, 4305005), (235, 3444004), (470, 1722002), (940, 861001)]