86781520

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{353}}^1\times {\mathrm{439}}^1$

素因数の和:812

約数の個数: 80

約数和(自身を含む): 231770880

約数和(自身を除く): 144989360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 353, 439, 560, 706, 878, 1412, 1756, 1765, 2195, 2471, 2824, 3073, 3512, 3530, 4390, 4942, 5648, 6146, 7024, 7060, 8780, 9884, 12292, 12355, 14120, 15365, 17560, 19768, 24584, 24710, 28240, 30730, 35120, 39536, 49168, 49420, 61460, 98840, 122920, 154967, 197680, 245840, 309934, 619868, 774835, 1084769, 1239736, 1549670, 2169538, 2479472, 3099340, 4339076, 5423845, 6198680, 8678152, 10847690, 12397360, 17356304, 21695380, 43390760, 86781520]

約数ペア:

[(1, 86781520), (2, 43390760), (4, 21695380), (5, 17356304), (7, 12397360), (8, 10847690), (10, 8678152), (14, 6198680), (16, 5423845), (20, 4339076), (28, 3099340), (35, 2479472), (40, 2169538), (56, 1549670), (70, 1239736), (80, 1084769), (112, 774835), (140, 619868), (280, 309934), (353, 245840), (439, 197680), (560, 154967), (706, 122920), (878, 98840), (1412, 61460), (1756, 49420), (1765, 49168), (2195, 39536), (2471, 35120), (2824, 30730), (3073, 28240), (3512, 24710), (3530, 24584), (4390, 19768), (4942, 17560), (5648, 15365), (6146, 14120), (7024, 12355), (7060, 12292), (8780, 9884)]