82251280

素因数分解:

$2^4\times 5^1\times {\mathrm{1028141}}^1$

素因数の和:1028154

約数の個数: 20

約数和(自身を含む): 191234412

約数和(自身を除く): 108983132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1028141, 2056282, 4112564, 5140705, 8225128, 10281410, 16450256, 20562820, 41125640, 82251280]

約数ペア:

[(1, 82251280), (2, 41125640), (4, 20562820), (5, 16450256), (8, 10281410), (10, 8225128), (16, 5140705), (20, 4112564), (40, 2056282), (80, 1028141)]