129905560

素因数分解:

$2^3\times 5^1\times {\mathrm{3247639}}^1$

素因数の和:3247650

約数の個数: 16

約数和(自身を含む): 292287600

約数和(自身を除く): 162382040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 3247639, 6495278, 12990556, 16238195, 25981112, 32476390, 64952780, 129905560]

約数ペア:

[(1, 129905560), (2, 64952780), (4, 32476390), (5, 25981112), (8, 16238195), (10, 12990556), (20, 6495278), (40, 3247639)]