65745140

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{80177}}^1$

素因数の和:80227

約数の個数: 24

約数和(自身を含む): 141433992

約数和(自身を除く): 75688852

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 80177, 160354, 320708, 400885, 801770, 1603540, 3287257, 6574514, 13149028, 16436285, 32872570, 65745140]

約数ペア:

[(1, 65745140), (2, 32872570), (4, 16436285), (5, 13149028), (10, 6574514), (20, 3287257), (41, 1603540), (82, 801770), (164, 400885), (205, 320708), (410, 160354), (820, 80177)]