18413140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{12967}}^1$

素因数の和:13047

約数の個数: 24

約数和(自身を含む): 39215232

約数和(自身を除く): 20802092

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 12967, 25934, 51868, 64835, 129670, 259340, 920657, 1841314, 3682628, 4603285, 9206570, 18413140]

約数ペア:

[(1, 18413140), (2, 9206570), (4, 4603285), (5, 3682628), (10, 1841314), (20, 920657), (71, 259340), (142, 129670), (284, 64835), (355, 51868), (710, 25934), (1420, 12967)]