18893240

素因数分解:

$2^3\times 5^1\times {\mathrm{472331}}^1$

素因数の和:472342

約数の個数: 16

約数和(自身を含む): 42509880

約数和(自身を除く): 23616640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 472331, 944662, 1889324, 2361655, 3778648, 4723310, 9446620, 18893240]

約数ペア:

[(1, 18893240), (2, 9446620), (4, 4723310), (5, 3778648), (8, 2361655), (10, 1889324), (20, 944662), (40, 472331)]