20564785

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{89}}^1\times {\mathrm{1249}}^1$

素因数の和:1380

約数の個数: 16

約数和(自身を含む): 25650000

約数和(自身を除く): 5085215

約数列:

[1, 5, 37, 89, 185, 445, 1249, 3293, 6245, 16465, 46213, 111161, 231065, 555805, 4112957, 20564785]

約数ペア:

[(1, 20564785), (5, 4112957), (37, 555805), (89, 231065), (185, 111161), (445, 46213), (1249, 16465), (3293, 6245)]