11215640

素因数分解:

$2^3\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1409}}^1$

素因数の和:1619

約数の個数: 32

約数和(自身を含む): 25380000

約数和(自身を除く): 14164360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 199, 398, 796, 995, 1409, 1592, 1990, 2818, 3980, 5636, 7045, 7960, 11272, 14090, 28180, 56360, 280391, 560782, 1121564, 1401955, 2243128, 2803910, 5607820, 11215640]

約数ペア:

[(1, 11215640), (2, 5607820), (4, 2803910), (5, 2243128), (8, 1401955), (10, 1121564), (20, 560782), (40, 280391), (199, 56360), (398, 28180), (796, 14090), (995, 11272), (1409, 7960), (1592, 7045), (1990, 5636), (2818, 3980)]