18137960

素因数分解:

$2^3\times 5^1\times {\mathrm{277}}^1\times {\mathrm{1637}}^1$

素因数の和:1925

約数の個数: 32

約数和(自身を含む): 40982760

約数和(自身を除く): 22844800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 277, 554, 1108, 1385, 1637, 2216, 2770, 3274, 5540, 6548, 8185, 11080, 13096, 16370, 32740, 65480, 453449, 906898, 1813796, 2267245, 3627592, 4534490, 9068980, 18137960]

約数ペア:

[(1, 18137960), (2, 9068980), (4, 4534490), (5, 3627592), (8, 2267245), (10, 1813796), (20, 906898), (40, 453449), (277, 65480), (554, 32740), (1108, 16370), (1385, 13096), (1637, 11080), (2216, 8185), (2770, 6548), (3274, 5540)]