22222180

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2531}}^1$

素因数の和:2979

約数の個数: 24

約数和(自身を含む): 46791360

約数和(自身を除く): 24569180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2195, 2531, 4390, 5062, 8780, 10124, 12655, 25310, 50620, 1111109, 2222218, 4444436, 5555545, 11111090, 22222180]

約数ペア:

[(1, 22222180), (2, 11111090), (4, 5555545), (5, 4444436), (10, 2222218), (20, 1111109), (439, 50620), (878, 25310), (1756, 12655), (2195, 10124), (2531, 8780), (4390, 5062)]