18316855

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{101}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 24675840

約数和(自身を除く): 6358985

約数列:

[1, 5, 19, 23, 83, 95, 101, 115, 415, 437, 505, 1577, 1909, 1919, 2185, 2323, 7885, 8383, 9545, 9595, 11615, 36271, 41915, 44137, 159277, 181355, 192809, 220685, 796385, 964045, 3663371, 18316855]

約数ペア:

[(1, 18316855), (5, 3663371), (19, 964045), (23, 796385), (83, 220685), (95, 192809), (101, 181355), (115, 159277), (415, 44137), (437, 41915), (505, 36271), (1577, 11615), (1909, 9595), (1919, 9545), (2185, 8383), (2323, 7885)]