90789040

素因数分解:

$2^4\times 5^1\times {\mathrm{1134863}}^1$

素因数の和:1134876

約数の個数: 20

約数和(自身を含む): 211084704

約数和(自身を除く): 120295664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1134863, 2269726, 4539452, 5674315, 9078904, 11348630, 18157808, 22697260, 45394520, 90789040]

約数ペア:

[(1, 90789040), (2, 45394520), (4, 22697260), (5, 18157808), (8, 11348630), (10, 9078904), (16, 5674315), (20, 4539452), (40, 2269726), (80, 1134863)]