22431280

素因数分解:

$2^4\times 5^1\times {\mathrm{199}}^1\times {\mathrm{1409}}^1$

素因数の和:1621

約数の個数: 40

約数和(自身を含む): 52452000

約数和(自身を除く): 30020720

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 199, 398, 796, 995, 1409, 1592, 1990, 2818, 3184, 3980, 5636, 7045, 7960, 11272, 14090, 15920, 22544, 28180, 56360, 112720, 280391, 560782, 1121564, 1401955, 2243128, 2803910, 4486256, 5607820, 11215640, 22431280]

約数ペア:

[(1, 22431280), (2, 11215640), (4, 5607820), (5, 4486256), (8, 2803910), (10, 2243128), (16, 1401955), (20, 1121564), (40, 560782), (80, 280391), (199, 112720), (398, 56360), (796, 28180), (995, 22544), (1409, 15920), (1592, 14090), (1990, 11272), (2818, 7960), (3184, 7045), (3980, 5636)]