7944080

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{499}}^1$

素因数の和:711

約数の個数: 40

約数和(自身を含む): 18600000

約数和(自身を除く): 10655920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 499, 796, 995, 998, 1592, 1990, 1996, 2495, 3184, 3980, 3992, 4990, 7960, 7984, 9980, 15920, 19960, 39920, 99301, 198602, 397204, 496505, 794408, 993010, 1588816, 1986020, 3972040, 7944080]

約数ペア:

[(1, 7944080), (2, 3972040), (4, 1986020), (5, 1588816), (8, 993010), (10, 794408), (16, 496505), (20, 397204), (40, 198602), (80, 99301), (199, 39920), (398, 19960), (499, 15920), (796, 9980), (995, 7984), (998, 7960), (1592, 4990), (1990, 3992), (1996, 3980), (2495, 3184)]