18516020

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{11719}}^1$

素因数の和:11807

約数の個数: 24

約数和(自身を含む): 39379200

約数和(自身を除く): 20863180

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 11719, 23438, 46876, 58595, 117190, 234380, 925801, 1851602, 3703204, 4629005, 9258010, 18516020]

約数ペア:

[(1, 18516020), (2, 9258010), (4, 4629005), (5, 3703204), (10, 1851602), (20, 925801), (79, 234380), (158, 117190), (316, 58595), (395, 46876), (790, 23438), (1580, 11719)]