280492780

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{15919}}^1$

素因数の和:16809

約数の個数: 24

約数和(自身を含む): 589740480

約数和(自身を除く): 309247700

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 15919, 17620, 31838, 63676, 79595, 159190, 318380, 14024639, 28049278, 56098556, 70123195, 140246390, 280492780]

約数ペア:

[(1, 280492780), (2, 140246390), (4, 70123195), (5, 56098556), (10, 28049278), (20, 14024639), (881, 318380), (1762, 159190), (3524, 79595), (4405, 63676), (8810, 31838), (15919, 17620)]