18675910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^2\times {\mathrm{101}}^1$

素因数の和:201

約数の個数: 48

約数和(自身を含む): 37961136

約数和(自身を除く): 19285226

約数列:

[1, 2, 5, 10, 11, 22, 41, 55, 82, 101, 110, 202, 205, 410, 451, 505, 902, 1010, 1111, 1681, 2222, 2255, 3362, 4141, 4510, 5555, 8282, 8405, 11110, 16810, 18491, 20705, 36982, 41410, 45551, 91102, 92455, 169781, 184910, 227755, 339562, 455510, 848905, 1697810, 1867591, 3735182, 9337955, 18675910]

約数ペア:

[(1, 18675910), (2, 9337955), (5, 3735182), (10, 1867591), (11, 1697810), (22, 848905), (41, 455510), (55, 339562), (82, 227755), (101, 184910), (110, 169781), (202, 92455), (205, 91102), (410, 45551), (451, 41410), (505, 36982), (902, 20705), (1010, 18491), (1111, 16810), (1681, 11110), (2222, 8405), (2255, 8282), (3362, 5555), (4141, 4510)]