40789040

素因数分解:

$2^4\times 5^1\times {\mathrm{509863}}^1$

素因数の和:509876

約数の個数: 20

約数和(自身を含む): 94834704

約数和(自身を除く): 54045664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 509863, 1019726, 2039452, 2549315, 4078904, 5098630, 8157808, 10197260, 20394520, 40789040]

約数ペア:

[(1, 40789040), (2, 20394520), (4, 10197260), (5, 8157808), (8, 5098630), (10, 4078904), (16, 2549315), (20, 2039452), (40, 1019726), (80, 509863)]