20085625

素因数分解:

$5^4\times 7^1\times {\mathrm{4591}}^1$

素因数の和:4618

約数の個数: 20

約数和(自身を含む): 28690816

約数和(自身を除く): 8605191

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 4591, 22955, 32137, 114775, 160685, 573875, 803425, 2869375, 4017125, 20085625]

約数ペア:

[(1, 20085625), (5, 4017125), (7, 2869375), (25, 803425), (35, 573875), (125, 160685), (175, 114775), (625, 32137), (875, 22955), (4375, 4591)]