20404180

素因数分解:

$2^2\times 5^1\times {\mathrm{67}}^1\times {\mathrm{15227}}^1$

素因数の和:15303

約数の個数: 24

約数和(自身を含む): 43491168

約数和(自身を除く): 23086988

約数列:

[1, 2, 4, 5, 10, 20, 67, 134, 268, 335, 670, 1340, 15227, 30454, 60908, 76135, 152270, 304540, 1020209, 2040418, 4080836, 5101045, 10202090, 20404180]

約数ペア:

[(1, 20404180), (2, 10202090), (4, 5101045), (5, 4080836), (10, 2040418), (20, 1020209), (67, 304540), (134, 152270), (268, 76135), (335, 60908), (670, 30454), (1340, 15227)]