20501720

素因数分解:

$2^3\times 5^1\times {\mathrm{512543}}^1$

素因数の和:512554

約数の個数: 16

約数和(自身を含む): 46128960

約数和(自身を除く): 25627240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512543, 1025086, 2050172, 2562715, 4100344, 5125430, 10250860, 20501720]

約数ペア:

[(1, 20501720), (2, 10250860), (4, 5125430), (5, 4100344), (8, 2562715), (10, 2050172), (20, 1025086), (40, 512543)]