16817680

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{659}}^1$

素因数の和:712

約数の個数: 80

約数和(自身を含む): 44193600

約数和(自身を除く): 27375920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 29, 40, 44, 55, 58, 80, 88, 110, 116, 145, 176, 220, 232, 290, 319, 440, 464, 580, 638, 659, 880, 1160, 1276, 1318, 1595, 2320, 2552, 2636, 3190, 3295, 5104, 5272, 6380, 6590, 7249, 10544, 12760, 13180, 14498, 19111, 25520, 26360, 28996, 36245, 38222, 52720, 57992, 72490, 76444, 95555, 115984, 144980, 152888, 191110, 210221, 289960, 305776, 382220, 420442, 579920, 764440, 840884, 1051105, 1528880, 1681768, 2102210, 3363536, 4204420, 8408840, 16817680]

約数ペア:

[(1, 16817680), (2, 8408840), (4, 4204420), (5, 3363536), (8, 2102210), (10, 1681768), (11, 1528880), (16, 1051105), (20, 840884), (22, 764440), (29, 579920), (40, 420442), (44, 382220), (55, 305776), (58, 289960), (80, 210221), (88, 191110), (110, 152888), (116, 144980), (145, 115984), (176, 95555), (220, 76444), (232, 72490), (290, 57992), (319, 52720), (440, 38222), (464, 36245), (580, 28996), (638, 26360), (659, 25520), (880, 19111), (1160, 14498), (1276, 13180), (1318, 12760), (1595, 10544), (2320, 7249), (2552, 6590), (2636, 6380), (3190, 5272), (3295, 5104)]