878961110

素因数分解:

$2^1\times 5^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{5591}}^1$

素因数の和:5876

約数の個数: 32

約数和(自身を含む): 1610496000

約数和(自身を除く): 731534890

約数列:

[1, 2, 5, 10, 79, 158, 199, 395, 398, 790, 995, 1990, 5591, 11182, 15721, 27955, 31442, 55910, 78605, 157210, 441689, 883378, 1112609, 2208445, 2225218, 4416890, 5563045, 11126090, 87896111, 175792222, 439480555, 878961110]

約数ペア:

[(1, 878961110), (2, 439480555), (5, 175792222), (10, 87896111), (79, 11126090), (158, 5563045), (199, 4416890), (395, 2225218), (398, 2208445), (790, 1112609), (995, 883378), (1990, 441689), (5591, 157210), (11182, 78605), (15721, 55910), (27955, 31442)]