17988980

素因数分解:

$2^2\times 5^1\times {\mathrm{271}}^1\times {\mathrm{3319}}^1$

素因数の和:3599

約数の個数: 24

約数和(自身を含む): 37927680

約数和(自身を除く): 19938700

約数列:

[1, 2, 4, 5, 10, 20, 271, 542, 1084, 1355, 2710, 3319, 5420, 6638, 13276, 16595, 33190, 66380, 899449, 1798898, 3597796, 4497245, 8994490, 17988980]

約数ペア:

[(1, 17988980), (2, 8994490), (4, 4497245), (5, 3597796), (10, 1798898), (20, 899449), (271, 66380), (542, 33190), (1084, 16595), (1355, 13276), (2710, 6638), (3319, 5420)]