39998220

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{666637}}^1$

素因数の和:666649

約数の個数: 24

約数和(自身を含む): 111995184

約数和(自身を除く): 71996964

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 666637, 1333274, 1999911, 2666548, 3333185, 3999822, 6666370, 7999644, 9999555, 13332740, 19999110, 39998220]

約数ペア:

[(1, 39998220), (2, 19999110), (3, 13332740), (4, 9999555), (5, 7999644), (6, 6666370), (10, 3999822), (12, 3333185), (15, 2666548), (20, 1999911), (30, 1333274), (60, 666637)]