261669040

素因数分解:

$2^4\times 5^1\times {\mathrm{3270863}}^1$

素因数の和:3270876

約数の個数: 20

約数和(自身を含む): 608380704

約数和(自身を除く): 346711664

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3270863, 6541726, 13083452, 16354315, 26166904, 32708630, 52333808, 65417260, 130834520, 261669040]

約数ペア:

[(1, 261669040), (2, 130834520), (4, 65417260), (5, 52333808), (8, 32708630), (10, 26166904), (16, 16354315), (20, 13083452), (40, 6541726), (80, 3270863)]