206511305

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1$

素因数の和:100

約数の個数: 80

約数和(自身を含む): 346321920

約数和(自身を除く): 139810615

約数列:

[1, 5, 7, 11, 13, 31, 35, 55, 65, 77, 91, 121, 143, 155, 217, 341, 385, 403, 455, 605, 715, 847, 1001, 1085, 1331, 1573, 1705, 2015, 2387, 2821, 3751, 4235, 4433, 5005, 6655, 7865, 9317, 11011, 11935, 14105, 14641, 17303, 18755, 22165, 26257, 31031, 41261, 46585, 48763, 55055, 73205, 86515, 102487, 121121, 131285, 155155, 190333, 206305, 243815, 288827, 341341, 453871, 512435, 536393, 605605, 951665, 1332331, 1444135, 1706705, 2269355, 2681965, 3177097, 3754751, 5900323, 6661655, 15885485, 18773755, 29501615, 41302261, 206511305]

約数ペア:

[(1, 206511305), (5, 41302261), (7, 29501615), (11, 18773755), (13, 15885485), (31, 6661655), (35, 5900323), (55, 3754751), (65, 3177097), (77, 2681965), (91, 2269355), (121, 1706705), (143, 1444135), (155, 1332331), (217, 951665), (341, 605605), (385, 536393), (403, 512435), (455, 453871), (605, 341341), (715, 288827), (847, 243815), (1001, 206305), (1085, 190333), (1331, 155155), (1573, 131285), (1705, 121121), (2015, 102487), (2387, 86515), (2821, 73205), (3751, 55055), (4235, 48763), (4433, 46585), (5005, 41261), (6655, 31031), (7865, 26257), (9317, 22165), (11011, 18755), (11935, 17303), (14105, 14641)]