20385895

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{89}}^1\times {\mathrm{751}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 25176960

約数和(自身を除く): 4791065

約数列:

[1, 5, 61, 89, 305, 445, 751, 3755, 5429, 27145, 45811, 66839, 229055, 334195, 4077179, 20385895]

約数ペア:

[(1, 20385895), (5, 4077179), (61, 334195), (89, 229055), (305, 66839), (445, 45811), (751, 27145), (3755, 5429)]