826617620

素因数分解:

$2^2\times 5^1\times {\mathrm{41330881}}^1$

素因数の和:41330890

約数の個数: 12

約数和(自身を含む): 1735897044

約数和(自身を除く): 909279424

約数列:

[1, 2, 4, 5, 10, 20, 41330881, 82661762, 165323524, 206654405, 413308810, 826617620]

約数ペア:

[(1, 826617620), (2, 413308810), (4, 206654405), (5, 165323524), (10, 82661762), (20, 41330881)]