90939640

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^2$

素因数の和:205

約数の個数: 96

約数和(自身を含む): 231925680

約数和(自身を除く): 140986040

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 41, 44, 55, 71, 82, 88, 110, 142, 164, 205, 220, 284, 328, 355, 410, 440, 451, 568, 710, 781, 820, 902, 1420, 1562, 1640, 1804, 2255, 2840, 2911, 3124, 3608, 3905, 4510, 5041, 5822, 6248, 7810, 9020, 10082, 11644, 14555, 15620, 18040, 20164, 23288, 25205, 29110, 31240, 32021, 40328, 50410, 55451, 58220, 64042, 100820, 110902, 116440, 128084, 160105, 201640, 206681, 221804, 256168, 277255, 320210, 413362, 443608, 554510, 640420, 826724, 1033405, 1109020, 1280840, 1653448, 2066810, 2218040, 2273491, 4133620, 4546982, 8267240, 9093964, 11367455, 18187928, 22734910, 45469820, 90939640]

約数ペア:

[(1, 90939640), (2, 45469820), (4, 22734910), (5, 18187928), (8, 11367455), (10, 9093964), (11, 8267240), (20, 4546982), (22, 4133620), (40, 2273491), (41, 2218040), (44, 2066810), (55, 1653448), (71, 1280840), (82, 1109020), (88, 1033405), (110, 826724), (142, 640420), (164, 554510), (205, 443608), (220, 413362), (284, 320210), (328, 277255), (355, 256168), (410, 221804), (440, 206681), (451, 201640), (568, 160105), (710, 128084), (781, 116440), (820, 110902), (902, 100820), (1420, 64042), (1562, 58220), (1640, 55451), (1804, 50410), (2255, 40328), (2840, 32021), (2911, 31240), (3124, 29110), (3608, 25205), (3905, 23288), (4510, 20164), (5041, 18040), (5822, 15620), (6248, 14555), (7810, 11644), (9020, 10082)]