18089615

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{487}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 25297920

約数和(自身を除く): 7208305

約数列:

[1, 5, 17, 19, 23, 85, 95, 115, 323, 391, 437, 487, 1615, 1955, 2185, 2435, 7429, 8279, 9253, 11201, 37145, 41395, 46265, 56005, 157301, 190417, 212819, 786505, 952085, 1064095, 3617923, 18089615]

約数ペア:

[(1, 18089615), (5, 3617923), (17, 1064095), (19, 952085), (23, 786505), (85, 212819), (95, 190417), (115, 157301), (323, 56005), (391, 46265), (437, 41395), (487, 37145), (1615, 11201), (1955, 9253), (2185, 8279), (2435, 7429)]