28713125

素因数分解:

$5^4\times 7^1\times {\mathrm{6563}}^1$

素因数の和:6590

約数の個数: 20

約数和(自身を含む): 41011872

約数和(自身を除く): 12298747

約数列:

[1, 5, 7, 25, 35, 125, 175, 625, 875, 4375, 6563, 32815, 45941, 164075, 229705, 820375, 1148525, 4101875, 5742625, 28713125]

約数ペア:

[(1, 28713125), (5, 5742625), (7, 4101875), (25, 1148525), (35, 820375), (125, 229705), (175, 164075), (625, 45941), (875, 32815), (4375, 6563)]