20466100

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{1987}}^1$

素因数の和:2104

約数の個数: 36

約数和(自身を含む): 44865184

約数和(自身を除く): 24399084

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 1987, 2060, 2575, 3974, 5150, 7948, 9935, 10300, 19870, 39740, 49675, 99350, 198700, 204661, 409322, 818644, 1023305, 2046610, 4093220, 5116525, 10233050, 20466100]

約数ペア:

[(1, 20466100), (2, 10233050), (4, 5116525), (5, 4093220), (10, 2046610), (20, 1023305), (25, 818644), (50, 409322), (100, 204661), (103, 198700), (206, 99350), (412, 49675), (515, 39740), (1030, 19870), (1987, 10300), (2060, 9935), (2575, 7948), (3974, 5150)]