80875980

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{449311}}^1$

素因数の和:449326

約数の個数: 36

約数和(自身を含む): 245324352

約数和(自身を除く): 164448372

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 449311, 898622, 1347933, 1797244, 2246555, 2695866, 4043799, 4493110, 5391732, 6739665, 8087598, 8986220, 13479330, 16175196, 20218995, 26958660, 40437990, 80875980]

約数ペア:

[(1, 80875980), (2, 40437990), (3, 26958660), (4, 20218995), (5, 16175196), (6, 13479330), (9, 8986220), (10, 8087598), (12, 6739665), (15, 5391732), (18, 4493110), (20, 4043799), (30, 2695866), (36, 2246555), (45, 1797244), (60, 1347933), (90, 898622), (180, 449311)]