28020625

素因数分解:

$5^4\times {\mathrm{107}}^1\times {\mathrm{419}}^1$

素因数の和:546

約数の個数: 20

約数和(自身を含む): 35426160

約数和(自身を除く): 7405535

約数列:

[1, 5, 25, 107, 125, 419, 535, 625, 2095, 2675, 10475, 13375, 44833, 52375, 66875, 224165, 261875, 1120825, 5604125, 28020625]

約数ペア:

[(1, 28020625), (5, 5604125), (25, 1120825), (107, 261875), (125, 224165), (419, 66875), (535, 52375), (625, 44833), (2095, 13375), (2675, 10475)]