25688140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{31327}}^1$

素因数の和:31377

約数の個数: 24

約数和(自身を含む): 55262592

約数和(自身を除く): 29574452

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 31327, 62654, 125308, 156635, 313270, 626540, 1284407, 2568814, 5137628, 6422035, 12844070, 25688140]

約数ペア:

[(1, 25688140), (2, 12844070), (4, 6422035), (5, 5137628), (10, 2568814), (20, 1284407), (41, 626540), (82, 313270), (164, 156635), (205, 125308), (410, 62654), (820, 31327)]