80728136

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{311}}^1\times {\mathrm{457}}^1$

素因数の和:845

約数の個数: 32

約数和(自身を含む): 154327680

約数和(自身を除く): 73599544

約数列:

[1, 2, 4, 8, 71, 142, 284, 311, 457, 568, 622, 914, 1244, 1828, 2488, 3656, 22081, 32447, 44162, 64894, 88324, 129788, 142127, 176648, 259576, 284254, 568508, 1137016, 10091017, 20182034, 40364068, 80728136]

約数ペア:

[(1, 80728136), (2, 40364068), (4, 20182034), (8, 10091017), (71, 1137016), (142, 568508), (284, 284254), (311, 259576), (457, 176648), (568, 142127), (622, 129788), (914, 88324), (1244, 64894), (1828, 44162), (2488, 32447), (3656, 22081)]