31875820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{8009}}^1$

素因数の和:8217

約数の個数: 24

約数和(自身を含む): 67284000

約数和(自身を除く): 35408180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 8009, 16018, 32036, 40045, 80090, 160180, 1593791, 3187582, 6375164, 7968955, 15937910, 31875820]

約数ペア:

[(1, 31875820), (2, 15937910), (4, 7968955), (5, 6375164), (10, 3187582), (20, 1593791), (199, 160180), (398, 80090), (796, 40045), (995, 32036), (1990, 16018), (3980, 8009)]