25603280

素因数分解:

$2^4\times 5^1\times {\mathrm{320041}}^1$

素因数の和:320054

約数の個数: 20

約数和(自身を含む): 59527812

約数和(自身を除く): 33924532

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 320041, 640082, 1280164, 1600205, 2560328, 3200410, 5120656, 6400820, 12801640, 25603280]

約数ペア:

[(1, 25603280), (2, 12801640), (4, 6400820), (5, 5120656), (8, 3200410), (10, 2560328), (16, 1600205), (20, 1280164), (40, 640082), (80, 320041)]