20377525

素因数分解:

$5^2\times 7^1\times {\mathrm{116443}}^1$

素因数の和:116460

約数の個数: 12

約数和(自身を含む): 28878112

約数和(自身を除く): 8500587

約数列:

[1, 5, 7, 25, 35, 175, 116443, 582215, 815101, 2911075, 4075505, 20377525]

約数ペア:

[(1, 20377525), (5, 4075505), (7, 2911075), (25, 815101), (35, 582215), (175, 116443)]