8111240

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1019}}^1$

素因数の和:1229

約数の個数: 32

約数和(自身を含む): 18360000

約数和(自身を除く): 10248760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1019, 1592, 1990, 2038, 3980, 4076, 5095, 7960, 8152, 10190, 20380, 40760, 202781, 405562, 811124, 1013905, 1622248, 2027810, 4055620, 8111240]

約数ペア:

[(1, 8111240), (2, 4055620), (4, 2027810), (5, 1622248), (8, 1013905), (10, 811124), (20, 405562), (40, 202781), (199, 40760), (398, 20380), (796, 10190), (995, 8152), (1019, 7960), (1592, 5095), (1990, 4076), (2038, 3980)]