39887920

素因数分解:

$2^4\times 5^1\times {\mathrm{498599}}^1$

素因数の和:498612

約数の個数: 20

約数和(自身を含む): 92739600

約数和(自身を除く): 52851680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 498599, 997198, 1994396, 2492995, 3988792, 4985990, 7977584, 9971980, 19943960, 39887920]

約数ペア:

[(1, 39887920), (2, 19943960), (4, 9971980), (5, 7977584), (8, 4985990), (10, 3988792), (16, 2492995), (20, 1994396), (40, 997198), (80, 498599)]