18008740

素因数分解:

$2^2\times 5^1\times {\mathrm{631}}^1\times {\mathrm{1427}}^1$

素因数の和:2067

約数の個数: 24

約数和(自身を含む): 37904832

約数和(自身を除く): 19896092

約数列:

[1, 2, 4, 5, 10, 20, 631, 1262, 1427, 2524, 2854, 3155, 5708, 6310, 7135, 12620, 14270, 28540, 900437, 1800874, 3601748, 4502185, 9004370, 18008740]

約数ペア:

[(1, 18008740), (2, 9004370), (4, 4502185), (5, 3601748), (10, 1800874), (20, 900437), (631, 28540), (1262, 14270), (1427, 12620), (2524, 7135), (2854, 6310), (3155, 5708)]