17985620

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{4519}}^1$

素因数の和:4727

約数の個数: 24

約数和(自身を含む): 37968000

約数和(自身を除く): 19982380

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 4519, 9038, 18076, 22595, 45190, 90380, 899281, 1798562, 3597124, 4496405, 8992810, 17985620]

約数ペア:

[(1, 17985620), (2, 8992810), (4, 4496405), (5, 3597124), (10, 1798562), (20, 899281), (199, 90380), (398, 45190), (796, 22595), (995, 18076), (1990, 9038), (3980, 4519)]