138786040

素因数分解:

$2^3\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{2837}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 312634080

約数和(自身を除く): 173848040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1223, 2446, 2837, 4892, 5674, 6115, 9784, 11348, 12230, 14185, 22696, 24460, 28370, 48920, 56740, 113480, 3469651, 6939302, 13878604, 17348255, 27757208, 34696510, 69393020, 138786040]

約数ペア:

[(1, 138786040), (2, 69393020), (4, 34696510), (5, 27757208), (8, 17348255), (10, 13878604), (20, 6939302), (40, 3469651), (1223, 113480), (2446, 56740), (2837, 48920), (4892, 28370), (5674, 24460), (6115, 22696), (9784, 14185), (11348, 12230)]