858990040

素因数分解:

$2^3\times 5^1\times {\mathrm{21474751}}^1$

素因数の和:21474762

約数の個数: 16

約数和(自身を含む): 1932727680

約数和(自身を除く): 1073737640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 21474751, 42949502, 85899004, 107373755, 171798008, 214747510, 429495020, 858990040]

約数ペア:

[(1, 858990040), (2, 429495020), (4, 214747510), (5, 171798008), (8, 107373755), (10, 85899004), (20, 42949502), (40, 21474751)]