8839616360

素因数分解:

$2^3\times 5^1\times {\mathrm{220990409}}^1$

素因数の和:220990420

約数の個数: 16

約数和(自身を含む): 19889136900

約数和(自身を除く): 11049520540

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 220990409, 441980818, 883961636, 1104952045, 1767923272, 2209904090, 4419808180, 8839616360]

約数ペア:

[(1, 8839616360), (2, 4419808180), (4, 2209904090), (5, 1767923272), (8, 1104952045), (10, 883961636), (20, 441980818), (40, 220990409)]