1256168720

素因数分解:

$2^4\times 5^1\times {\mathrm{15702109}}^1$

素因数の和:15702122

約数の個数: 20

約数和(自身を含む): 2920592460

約数和(自身を除く): 1664423740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15702109, 31404218, 62808436, 78510545, 125616872, 157021090, 251233744, 314042180, 628084360, 1256168720]

約数ペア:

[(1, 1256168720), (2, 628084360), (4, 314042180), (5, 251233744), (8, 157021090), (10, 125616872), (16, 78510545), (20, 62808436), (40, 31404218), (80, 15702109)]