156847820

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{39409}}^1$

素因数の和:39617

約数の個数: 24

約数和(自身を含む): 331044000

約数和(自身を除く): 174196180

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 39409, 78818, 157636, 197045, 394090, 788180, 7842391, 15684782, 31369564, 39211955, 78423910, 156847820]

約数ペア:

[(1, 156847820), (2, 78423910), (4, 39211955), (5, 31369564), (10, 15684782), (20, 7842391), (199, 788180), (398, 394090), (796, 197045), (995, 157636), (1990, 78818), (3980, 39409)]