2001620

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{2441}}^1$

素因数の和:2491

約数の個数: 24

約数和(自身を含む): 4307688

約数和(自身を除く): 2306068

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 2441, 4882, 9764, 12205, 24410, 48820, 100081, 200162, 400324, 500405, 1000810, 2001620]

約数ペア:

[(1, 2001620), (2, 1000810), (4, 500405), (5, 400324), (10, 200162), (20, 100081), (41, 48820), (82, 24410), (164, 12205), (205, 9764), (410, 4882), (820, 2441)]