159968140

素因数分解:

$2^2\times 5^1\times {\mathrm{199}}^1\times {\mathrm{40193}}^1$

素因数の和:40401

約数の個数: 24

約数和(自身を含む): 337629600

約数和(自身を除く): 177661460

約数列:

[1, 2, 4, 5, 10, 20, 199, 398, 796, 995, 1990, 3980, 40193, 80386, 160772, 200965, 401930, 803860, 7998407, 15996814, 31993628, 39992035, 79984070, 159968140]

約数ペア:

[(1, 159968140), (2, 79984070), (4, 39992035), (5, 31993628), (10, 15996814), (20, 7998407), (199, 803860), (398, 401930), (796, 200965), (995, 160772), (1990, 80386), (3980, 40193)]