9777680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{271}}^1$

素因数の和:336

約数の個数: 80

約数和(自身を含む): 25498368

約数和(自身を除く): 15720688

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 41, 44, 55, 80, 82, 88, 110, 164, 176, 205, 220, 271, 328, 410, 440, 451, 542, 656, 820, 880, 902, 1084, 1355, 1640, 1804, 2168, 2255, 2710, 2981, 3280, 3608, 4336, 4510, 5420, 5962, 7216, 9020, 10840, 11111, 11924, 14905, 18040, 21680, 22222, 23848, 29810, 36080, 44444, 47696, 55555, 59620, 88888, 111110, 119240, 122221, 177776, 222220, 238480, 244442, 444440, 488884, 611105, 888880, 977768, 1222210, 1955536, 2444420, 4888840, 9777680]

約数ペア:

[(1, 9777680), (2, 4888840), (4, 2444420), (5, 1955536), (8, 1222210), (10, 977768), (11, 888880), (16, 611105), (20, 488884), (22, 444440), (40, 244442), (41, 238480), (44, 222220), (55, 177776), (80, 122221), (82, 119240), (88, 111110), (110, 88888), (164, 59620), (176, 55555), (205, 47696), (220, 44444), (271, 36080), (328, 29810), (410, 23848), (440, 22222), (451, 21680), (542, 18040), (656, 14905), (820, 11924), (880, 11111), (902, 10840), (1084, 9020), (1355, 7216), (1640, 5962), (1804, 5420), (2168, 4510), (2255, 4336), (2710, 3608), (2981, 3280)]