28253260

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{201809}}^1$

素因数の和:201825

約数の個数: 24

約数和(自身を含む): 67808160

約数和(自身を除く): 39554900

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 201809, 403618, 807236, 1009045, 1412663, 2018090, 2825326, 4036180, 5650652, 7063315, 14126630, 28253260]

約数ペア:

[(1, 28253260), (2, 14126630), (4, 7063315), (5, 5650652), (7, 4036180), (10, 2825326), (14, 2018090), (20, 1412663), (28, 1009045), (35, 807236), (70, 403618), (140, 201809)]