139887920

素因数分解:

$2^4\times 5^1\times {\mathrm{1748599}}^1$

素因数の和:1748612

約数の個数: 20

約数和(自身を含む): 325239600

約数和(自身を除く): 185351680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1748599, 3497198, 6994396, 8742995, 13988792, 17485990, 27977584, 34971980, 69943960, 139887920]

約数ペア:

[(1, 139887920), (2, 69943960), (4, 34971980), (5, 27977584), (8, 17485990), (10, 13988792), (16, 8742995), (20, 6994396), (40, 3497198), (80, 1748599)]