31824080

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1999}}^1$

素因数の和:2211

約数の個数: 40

約数和(自身を含む): 74400000

約数和(自身を除く): 42575920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1592, 1990, 1999, 3184, 3980, 3998, 7960, 7996, 9995, 15920, 15992, 19990, 31984, 39980, 79960, 159920, 397801, 795602, 1591204, 1989005, 3182408, 3978010, 6364816, 7956020, 15912040, 31824080]

約数ペア:

[(1, 31824080), (2, 15912040), (4, 7956020), (5, 6364816), (8, 3978010), (10, 3182408), (16, 1989005), (20, 1591204), (40, 795602), (80, 397801), (199, 159920), (398, 79960), (796, 39980), (995, 31984), (1592, 19990), (1990, 15992), (1999, 15920), (3184, 9995), (3980, 7996), (3998, 7960)]