20051245

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{419}}^1\times {\mathrm{563}}^1$

素因数の和:1004

約数の個数: 16

約数和(自身を含む): 25583040

約数和(自身を除く): 5531795

約数列:

[1, 5, 17, 85, 419, 563, 2095, 2815, 7123, 9571, 35615, 47855, 235897, 1179485, 4010249, 20051245]

約数ペア:

[(1, 20051245), (5, 4010249), (17, 1179485), (85, 235897), (419, 47855), (563, 35615), (2095, 9571), (2815, 7123)]