63648160

素因数分解:

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

素因数の和:2213

約数の個数: 48

約数和(自身を含む): 151200000

約数和(自身を除く): 87551840

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 199, 398, 796, 995, 1592, 1990, 1999, 3184, 3980, 3998, 6368, 7960, 7996, 9995, 15920, 15992, 19990, 31840, 31984, 39980, 63968, 79960, 159920, 319840, 397801, 795602, 1591204, 1989005, 3182408, 3978010, 6364816, 7956020, 12729632, 15912040, 31824080, 63648160]

約数ペア:

[(1, 63648160), (2, 31824080), (4, 15912040), (5, 12729632), (8, 7956020), (10, 6364816), (16, 3978010), (20, 3182408), (32, 1989005), (40, 1591204), (80, 795602), (160, 397801), (199, 319840), (398, 159920), (796, 79960), (995, 63968), (1592, 39980), (1990, 31984), (1999, 31840), (3184, 19990), (3980, 15992), (3998, 15920), (6368, 9995), (7960, 7996)]