1278343216

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{1858057}}^1$

素因数の和:1858108

約数の個数: 20

約数和(自身を含む): 2534391112

約数和(自身を除く): 1256047896

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 1858057, 3716114, 7432228, 14864456, 29728912, 79896451, 159792902, 319585804, 639171608, 1278343216]

約数ペア:

[(1, 1278343216), (2, 639171608), (4, 319585804), (8, 159792902), (16, 79896451), (43, 29728912), (86, 14864456), (172, 7432228), (344, 3716114), (688, 1858057)]