18982780

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{22073}}^1$

素因数の和:22125

約数の個数: 24

約数和(自身を含む): 40792752

約数和(自身を除く): 21809972

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 22073, 44146, 88292, 110365, 220730, 441460, 949139, 1898278, 3796556, 4745695, 9491390, 18982780]

約数ペア:

[(1, 18982780), (2, 9491390), (4, 4745695), (5, 3796556), (10, 1898278), (20, 949139), (43, 441460), (86, 220730), (172, 110365), (215, 88292), (430, 44146), (860, 22073)]