18117740

素因数分解:

$2^2\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1117}}^1$

素因数の和:1937

約数の個数: 24

約数和(自身を含む): 38128272

約数和(自身を除く): 20010532

約数列:

[1, 2, 4, 5, 10, 20, 811, 1117, 1622, 2234, 3244, 4055, 4468, 5585, 8110, 11170, 16220, 22340, 905887, 1811774, 3623548, 4529435, 9058870, 18117740]

約数ペア:

[(1, 18117740), (2, 9058870), (4, 4529435), (5, 3623548), (10, 1811774), (20, 905887), (811, 22340), (1117, 16220), (1622, 11170), (2234, 8110), (3244, 5585), (4055, 4468)]