81537436

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{2203}}^1$

素因数の和:2713

約数の個数: 24

約数和(自身を含む): 150577280

約数和(自身を除く): 69039844

約数列:

[1, 2, 4, 19, 38, 76, 487, 974, 1948, 2203, 4406, 8812, 9253, 18506, 37012, 41857, 83714, 167428, 1072861, 2145722, 4291444, 20384359, 40768718, 81537436]

約数ペア:

[(1, 81537436), (2, 40768718), (4, 20384359), (19, 4291444), (38, 2145722), (76, 1072861), (487, 167428), (974, 83714), (1948, 41857), (2203, 37012), (4406, 18506), (8812, 9253)]