20219245

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1\times {\mathrm{599}}^1$

素因数の和:804

約数の個数: 16

約数和(自身を含む): 25027200

約数和(自身を除く): 4807955

約数列:

[1, 5, 43, 157, 215, 599, 785, 2995, 6751, 25757, 33755, 94043, 128785, 470215, 4043849, 20219245]

約数ペア:

[(1, 20219245), (5, 4043849), (43, 470215), (157, 128785), (215, 94043), (599, 33755), (785, 25757), (2995, 6751)]