80990320

素因数分解:

$2^4\times 5^1\times {\mathrm{1012379}}^1$

素因数の和:1012392

約数の個数: 20

約数和(自身を含む): 188302680

約数和(自身を除く): 107312360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1012379, 2024758, 4049516, 5061895, 8099032, 10123790, 16198064, 20247580, 40495160, 80990320]

約数ペア:

[(1, 80990320), (2, 40495160), (4, 20247580), (5, 16198064), (8, 10123790), (10, 8099032), (16, 5061895), (20, 4049516), (40, 2024758), (80, 1012379)]