1279372280

素因数分解:

$2^3\times 5^1\times {\mathrm{31984307}}^1$

素因数の和:31984318

約数の個数: 16

約数和(自身を含む): 2878587720

約数和(自身を除く): 1599215440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 31984307, 63968614, 127937228, 159921535, 255874456, 319843070, 639686140, 1279372280]

約数ペア:

[(1, 1279372280), (2, 639686140), (4, 319843070), (5, 255874456), (8, 159921535), (10, 127937228), (20, 63968614), (40, 31984307)]