25668080

素因数分解:

$2^4\times 5^1\times {\mathrm{320851}}^1$

素因数の和:320864

約数の個数: 20

約数和(自身を含む): 59678472

約数和(自身を除く): 34010392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320851, 641702, 1283404, 1604255, 2566808, 3208510, 5133616, 6417020, 12834040, 25668080]

約数ペア:

[(1, 25668080), (2, 12834040), (4, 6417020), (5, 5133616), (8, 3208510), (10, 2566808), (16, 1604255), (20, 1283404), (40, 641702), (80, 320851)]