18818740

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{49523}}^1$

素因数の和:49551

約数の個数: 24

約数和(自身を含む): 41600160

約数和(自身を除く): 22781420

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 49523, 99046, 198092, 247615, 495230, 940937, 990460, 1881874, 3763748, 4704685, 9409370, 18818740]

約数ペア:

[(1, 18818740), (2, 9409370), (4, 4704685), (5, 3763748), (10, 1881874), (19, 990460), (20, 940937), (38, 495230), (76, 247615), (95, 198092), (190, 99046), (380, 49523)]