20151740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{20563}}^1$

素因数の和:20586

約数の個数: 36

約数和(自身を含む): 49230216

約数和(自身を除く): 29078476

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980, 20563, 41126, 82252, 102815, 143941, 205630, 287882, 411260, 575764, 719705, 1007587, 1439410, 2015174, 2878820, 4030348, 5037935, 10075870, 20151740]

約数ペア:

[(1, 20151740), (2, 10075870), (4, 5037935), (5, 4030348), (7, 2878820), (10, 2015174), (14, 1439410), (20, 1007587), (28, 719705), (35, 575764), (49, 411260), (70, 287882), (98, 205630), (140, 143941), (196, 102815), (245, 82252), (490, 41126), (980, 20563)]