18534740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{18913}}^1$

素因数の和:18936

約数の個数: 36

約数和(自身を含む): 45280116

約数和(自身を除く): 26745376

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 18913, 37826, 75652, 94565, 132391, 189130, 264782, 378260, 529564, 661955, 926737, 1323910, 1853474, 2647820, 3706948, 4633685, 9267370, 18534740]

約数ペア:

[(1, 18534740), (2, 9267370), (4, 4633685), (5, 3706948), (7, 2647820), (10, 1853474), (14, 1323910), (20, 926737), (28, 661955), (35, 529564), (49, 378260), (70, 264782), (98, 189130), (140, 132391), (196, 94565), (245, 75652), (490, 37826), (980, 18913)]