28427245

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{1571}}^1$

素因数の和:1641

約数の個数: 32

約数和(自身を含む): 43462656

約数和(自身を除く): 15035411

約数列:

[1, 5, 7, 11, 35, 47, 55, 77, 235, 329, 385, 517, 1571, 1645, 2585, 3619, 7855, 10997, 17281, 18095, 54985, 73837, 86405, 120967, 369185, 516859, 604835, 812207, 2584295, 4061035, 5685449, 28427245]

約数ペア:

[(1, 28427245), (5, 5685449), (7, 4061035), (11, 2584295), (35, 812207), (47, 604835), (55, 516859), (77, 369185), (235, 120967), (329, 86405), (385, 73837), (517, 54985), (1571, 18095), (1645, 17281), (2585, 10997), (3619, 7855)]