78875960

素因数分解:

$2^3\times 5^1\times {\mathrm{397}}^1\times {\mathrm{4967}}^1$

素因数の和:5375

約数の個数: 32

約数和(自身を含む): 177953760

約数和(自身を除く): 99077800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 397, 794, 1588, 1985, 3176, 3970, 4967, 7940, 9934, 15880, 19868, 24835, 39736, 49670, 99340, 198680, 1971899, 3943798, 7887596, 9859495, 15775192, 19718990, 39437980, 78875960]

約数ペア:

[(1, 78875960), (2, 39437980), (4, 19718990), (5, 15775192), (8, 9859495), (10, 7887596), (20, 3943798), (40, 1971899), (397, 198680), (794, 99340), (1588, 49670), (1985, 39736), (3176, 24835), (3970, 19868), (4967, 15880), (7940, 9934)]