8827640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1109}}^1$

素因数の和:1319

約数の個数: 32

約数和(自身を含む): 19980000

約数和(自身を除く): 11152360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1109, 1592, 1990, 2218, 3980, 4436, 5545, 7960, 8872, 11090, 22180, 44360, 220691, 441382, 882764, 1103455, 1765528, 2206910, 4413820, 8827640]

約数ペア:

[(1, 8827640), (2, 4413820), (4, 2206910), (5, 1765528), (8, 1103455), (10, 882764), (20, 441382), (40, 220691), (199, 44360), (398, 22180), (796, 11090), (995, 8872), (1109, 7960), (1592, 5545), (1990, 4436), (2218, 3980)]