18181475

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1301}}^1$

素因数の和:1367

約数の個数: 24

約数和(自身を含む): 24862992

約数和(自身を除く): 6681517

約数列:

[1, 5, 13, 25, 43, 65, 215, 325, 559, 1075, 1301, 2795, 6505, 13975, 16913, 32525, 55943, 84565, 279715, 422825, 727259, 1398575, 3636295, 18181475]

約数ペア:

[(1, 18181475), (5, 3636295), (13, 1398575), (25, 727259), (43, 422825), (65, 279715), (215, 84565), (325, 55943), (559, 32525), (1075, 16913), (1301, 13975), (2795, 6505)]