65691020

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{80111}}^1$

素因数の和:80161

約数の個数: 24

約数和(自身を含む): 141317568

約数和(自身を除く): 75626548

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 80111, 160222, 320444, 400555, 801110, 1602220, 3284551, 6569102, 13138204, 16422755, 32845510, 65691020]

約数ペア:

[(1, 65691020), (2, 32845510), (4, 16422755), (5, 13138204), (10, 6569102), (20, 3284551), (41, 1602220), (82, 801110), (164, 400555), (205, 320444), (410, 160222), (820, 80111)]