80342800

素因数分解:

$2^4\times 5^2\times {\mathrm{353}}^1\times {\mathrm{569}}^1$

素因数の和:940

約数の個数: 60

約数和(自身を含む): 193910580

約数和(自身を除く): 113567780

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 353, 400, 569, 706, 1138, 1412, 1765, 2276, 2824, 2845, 3530, 4552, 5648, 5690, 7060, 8825, 9104, 11380, 14120, 14225, 17650, 22760, 28240, 28450, 35300, 45520, 56900, 70600, 113800, 141200, 200857, 227600, 401714, 803428, 1004285, 1606856, 2008570, 3213712, 4017140, 5021425, 8034280, 10042850, 16068560, 20085700, 40171400, 80342800]

約数ペア:

[(1, 80342800), (2, 40171400), (4, 20085700), (5, 16068560), (8, 10042850), (10, 8034280), (16, 5021425), (20, 4017140), (25, 3213712), (40, 2008570), (50, 1606856), (80, 1004285), (100, 803428), (200, 401714), (353, 227600), (400, 200857), (569, 141200), (706, 113800), (1138, 70600), (1412, 56900), (1765, 45520), (2276, 35300), (2824, 28450), (2845, 28240), (3530, 22760), (4552, 17650), (5648, 14225), (5690, 14120), (7060, 11380), (8825, 9104)]