8891320

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1117}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 20124000

約数和(自身を除く): 11232680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1117, 1592, 1990, 2234, 3980, 4468, 5585, 7960, 8936, 11170, 22340, 44680, 222283, 444566, 889132, 1111415, 1778264, 2222830, 4445660, 8891320]

約数ペア:

[(1, 8891320), (2, 4445660), (4, 2222830), (5, 1778264), (8, 1111415), (10, 889132), (20, 444566), (40, 222283), (199, 44680), (398, 22340), (796, 11170), (995, 8936), (1117, 7960), (1592, 5585), (1990, 4468), (2234, 3980)]