12776560

素因数分解:

$2^4\times 5^1\times {\mathrm{159707}}^1$

素因数の和:159720

約数の個数: 20

約数和(自身を含む): 29705688

約数和(自身を除く): 16929128

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 159707, 319414, 638828, 798535, 1277656, 1597070, 2555312, 3194140, 6388280, 12776560]

約数ペア:

[(1, 12776560), (2, 6388280), (4, 3194140), (5, 2555312), (8, 1597070), (10, 1277656), (16, 798535), (20, 638828), (40, 319414), (80, 159707)]