18328475

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{73}}^1\times {\mathrm{83}}^1$

素因数の和:188

約数の個数: 36

約数和(自身を含む): 25628568

約数和(自身を除く): 7300093

約数列:

[1, 5, 11, 25, 55, 73, 83, 121, 275, 365, 415, 605, 803, 913, 1825, 2075, 3025, 4015, 4565, 6059, 8833, 10043, 20075, 22825, 30295, 44165, 50215, 66649, 151475, 220825, 251075, 333245, 733139, 1666225, 3665695, 18328475]

約数ペア:

[(1, 18328475), (5, 3665695), (11, 1666225), (25, 733139), (55, 333245), (73, 251075), (83, 220825), (121, 151475), (275, 66649), (365, 50215), (415, 44165), (605, 30295), (803, 22825), (913, 20075), (1825, 10043), (2075, 8833), (3025, 6059), (4015, 4565)]