81819215

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{8831}}^1$

素因数の和:8962

約数の個数: 16

約数和(自身を含む): 104924160

約数和(自身を除く): 23104945

約数列:

[1, 5, 17, 85, 109, 545, 1853, 8831, 9265, 44155, 150127, 750635, 962579, 4812895, 16363843, 81819215]

約数ペア:

[(1, 81819215), (5, 16363843), (17, 4812895), (85, 962579), (109, 750635), (545, 150127), (1853, 44155), (8831, 9265)]