265993520

素因数分解:

$2^4\times 5^1\times {\mathrm{13}}^1\times {\mathrm{255763}}^1$

素因数の和:255789

約数の個数: 40

約数和(自身を含む): 666009456

約数和(自身を除く): 400015936

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040, 255763, 511526, 1023052, 1278815, 2046104, 2557630, 3324919, 4092208, 5115260, 6649838, 10230520, 13299676, 16624595, 20461040, 26599352, 33249190, 53198704, 66498380, 132996760, 265993520]

約数ペア:

[(1, 265993520), (2, 132996760), (4, 66498380), (5, 53198704), (8, 33249190), (10, 26599352), (13, 20461040), (16, 16624595), (20, 13299676), (26, 10230520), (40, 6649838), (52, 5115260), (65, 4092208), (80, 3324919), (104, 2557630), (130, 2046104), (208, 1278815), (260, 1023052), (520, 511526), (1040, 255763)]