20508520

素因数分解:

$2^3\times 5^1\times {\mathrm{512713}}^1$

素因数の和:512724

約数の個数: 16

約数和(自身を含む): 46144260

約数和(自身を除く): 25635740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 512713, 1025426, 2050852, 2563565, 4101704, 5127130, 10254260, 20508520]

約数ペア:

[(1, 20508520), (2, 10254260), (4, 5127130), (5, 4101704), (8, 2563565), (10, 2050852), (20, 1025426), (40, 512713)]