18952760

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{2381}}^1$

素因数の和:2591

約数の個数: 32

約数和(自身を含む): 42876000

約数和(自身を除く): 23923240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1592, 1990, 2381, 3980, 4762, 7960, 9524, 11905, 19048, 23810, 47620, 95240, 473819, 947638, 1895276, 2369095, 3790552, 4738190, 9476380, 18952760]

約数ペア:

[(1, 18952760), (2, 9476380), (4, 4738190), (5, 3790552), (8, 2369095), (10, 1895276), (20, 947638), (40, 473819), (199, 95240), (398, 47620), (796, 23810), (995, 19048), (1592, 11905), (1990, 9524), (2381, 7960), (3980, 4762)]