18240575

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{167}}^1\times {\mathrm{257}}^1$

素因数の和:451

約数の個数: 24

約数和(自身を含む): 24185952

約数和(自身を除く): 5945377

約数列:

[1, 5, 17, 25, 85, 167, 257, 425, 835, 1285, 2839, 4175, 4369, 6425, 14195, 21845, 42919, 70975, 109225, 214595, 729623, 1072975, 3648115, 18240575]

約数ペア:

[(1, 18240575), (5, 3648115), (17, 1072975), (25, 729623), (85, 214595), (167, 109225), (257, 70975), (425, 42919), (835, 21845), (1285, 14195), (2839, 6425), (4175, 4369)]