220917025

素因数分解:

$5^2\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2423}}^1$

素因数の和:2961

約数の個数: 24

約数和(自身を含む): 313801344

約数和(自身を除く): 92884319

約数列:

[1, 5, 7, 25, 35, 175, 521, 2423, 2605, 3647, 12115, 13025, 16961, 18235, 60575, 84805, 91175, 424025, 1262383, 6311915, 8836681, 31559575, 44183405, 220917025]

約数ペア:

[(1, 220917025), (5, 44183405), (7, 31559575), (25, 8836681), (35, 6311915), (175, 1262383), (521, 424025), (2423, 91175), (2605, 84805), (3647, 60575), (12115, 18235), (13025, 16961)]