18571340

素因数分解:

$2^2\times 5^1\times {\mathrm{937}}^1\times {\mathrm{991}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 39080832

約数和(自身を除く): 20509492

約数列:

[1, 2, 4, 5, 10, 20, 937, 991, 1874, 1982, 3748, 3964, 4685, 4955, 9370, 9910, 18740, 19820, 928567, 1857134, 3714268, 4642835, 9285670, 18571340]

約数ペア:

[(1, 18571340), (2, 9285670), (4, 4642835), (5, 3714268), (10, 1857134), (20, 928567), (937, 19820), (991, 18740), (1874, 9910), (1982, 9370), (3748, 4955), (3964, 4685)]