261153670

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{6907}}^1$

素因数の和:7132

約数の個数: 32

約数和(自身を含む): 497376000

約数和(自身を除く): 236222330

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 199, 398, 995, 1990, 3781, 6907, 7562, 13814, 18905, 34535, 37810, 69070, 131233, 262466, 656165, 1312330, 1374493, 2748986, 6872465, 13744930, 26115367, 52230734, 130576835, 261153670]

約数ペア:

[(1, 261153670), (2, 130576835), (5, 52230734), (10, 26115367), (19, 13744930), (38, 6872465), (95, 2748986), (190, 1374493), (199, 1312330), (398, 656165), (995, 262466), (1990, 131233), (3781, 69070), (6907, 37810), (7562, 34535), (13814, 18905)]