643826755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{937}}^1$

素因数の和:1028

約数の個数: 48

約数和(自身を含む): 938885472

約数和(自身を除く): 295058717

約数列:

[1, 5, 11, 13, 31, 55, 65, 143, 155, 341, 403, 715, 937, 961, 1705, 2015, 4433, 4685, 4805, 10307, 10571, 12181, 12493, 22165, 29047, 51535, 52855, 60905, 62465, 133991, 137423, 145235, 319517, 377611, 669955, 687115, 900457, 1597585, 1888055, 4153721, 4502285, 9905027, 11705941, 20768605, 49525135, 58529705, 128765351, 643826755]

約数ペア:

[(1, 643826755), (5, 128765351), (11, 58529705), (13, 49525135), (31, 20768605), (55, 11705941), (65, 9905027), (143, 4502285), (155, 4153721), (341, 1888055), (403, 1597585), (715, 900457), (937, 687115), (961, 669955), (1705, 377611), (2015, 319517), (4433, 145235), (4685, 137423), (4805, 133991), (10307, 62465), (10571, 60905), (12181, 52855), (12493, 51535), (22165, 29047)]