4040780

素因数分解:

$2^2\times 5^1\times {\mathrm{281}}^1\times {\mathrm{719}}^1$

素因数の和:1009

約数の個数: 24

約数和(自身を含む): 8527680

約数和(自身を除く): 4486900

約数列:

[1, 2, 4, 5, 10, 20, 281, 562, 719, 1124, 1405, 1438, 2810, 2876, 3595, 5620, 7190, 14380, 202039, 404078, 808156, 1010195, 2020390, 4040780]

約数ペア:

[(1, 4040780), (2, 2020390), (4, 1010195), (5, 808156), (10, 404078), (20, 202039), (281, 14380), (562, 7190), (719, 5620), (1124, 3595), (1405, 2876), (1438, 2810)]