139680080

素因数分解:

$2^4\times 5^1\times {\mathrm{499}}^1\times {\mathrm{3499}}^1$

素因数の和:4011

約数の個数: 40

約数和(自身を含む): 325500000

約数和(自身を除く): 185819920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 499, 998, 1996, 2495, 3499, 3992, 4990, 6998, 7984, 9980, 13996, 17495, 19960, 27992, 34990, 39920, 55984, 69980, 139960, 279920, 1746001, 3492002, 6984004, 8730005, 13968008, 17460010, 27936016, 34920020, 69840040, 139680080]

約数ペア:

[(1, 139680080), (2, 69840040), (4, 34920020), (5, 27936016), (8, 17460010), (10, 13968008), (16, 8730005), (20, 6984004), (40, 3492002), (80, 1746001), (499, 279920), (998, 139960), (1996, 69980), (2495, 55984), (3499, 39920), (3992, 34990), (4990, 27992), (6998, 19960), (7984, 17495), (9980, 13996)]