1561660

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{691}}^1$

素因数の和:813

約数の個数: 24

約数和(自身を含む): 3313296

約数和(自身を除く): 1751636

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 691, 1130, 1382, 2260, 2764, 3455, 6910, 13820, 78083, 156166, 312332, 390415, 780830, 1561660]

約数ペア:

[(1, 1561660), (2, 780830), (4, 390415), (5, 312332), (10, 156166), (20, 78083), (113, 13820), (226, 6910), (452, 3455), (565, 2764), (691, 2260), (1130, 1382)]