18710180

素因数分解:

$2^2\times 5^1\times {\mathrm{439}}^1\times {\mathrm{2131}}^1$

素因数の和:2579

約数の個数: 24

約数和(自身を含む): 39399360

約数和(自身を除く): 20689180

約数列:

[1, 2, 4, 5, 10, 20, 439, 878, 1756, 2131, 2195, 4262, 4390, 8524, 8780, 10655, 21310, 42620, 935509, 1871018, 3742036, 4677545, 9355090, 18710180]

約数ペア:

[(1, 18710180), (2, 9355090), (4, 4677545), (5, 3742036), (10, 1871018), (20, 935509), (439, 42620), (878, 21310), (1756, 10655), (2131, 8780), (2195, 8524), (4262, 4390)]