18264475

素因数分解:

$5^2\times {\mathrm{41}}^1\times {\mathrm{103}}^1\times {\mathrm{173}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 23560992

約数和(自身を除く): 5296517

約数列:

[1, 5, 25, 41, 103, 173, 205, 515, 865, 1025, 2575, 4223, 4325, 7093, 17819, 21115, 35465, 89095, 105575, 177325, 445475, 730579, 3652895, 18264475]

約数ペア:

[(1, 18264475), (5, 3652895), (25, 730579), (41, 445475), (103, 177325), (173, 105575), (205, 89095), (515, 35465), (865, 21115), (1025, 17819), (2575, 7093), (4223, 4325)]