890882440

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{1093}}^1$

素因数の和:1223

約数の個数: 128

約数和(自身を含む): 2381944320

約数和(自身を除く): 1491061880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 41, 56, 70, 71, 82, 140, 142, 164, 205, 280, 284, 287, 328, 355, 410, 497, 568, 574, 710, 820, 994, 1093, 1148, 1420, 1435, 1640, 1988, 2186, 2296, 2485, 2840, 2870, 2911, 3976, 4372, 4970, 5465, 5740, 5822, 7651, 8744, 9940, 10930, 11480, 11644, 14555, 15302, 19880, 20377, 21860, 23288, 29110, 30604, 38255, 40754, 43720, 44813, 58220, 61208, 76510, 77603, 81508, 89626, 101885, 116440, 153020, 155206, 163016, 179252, 203770, 224065, 306040, 310412, 313691, 358504, 388015, 407540, 448130, 543221, 620824, 627382, 776030, 815080, 896260, 1086442, 1254764, 1552060, 1568455, 1792520, 2172884, 2509528, 2716105, 3104120, 3136910, 3181723, 4345768, 5432210, 6273820, 6363446, 10864420, 12547640, 12726892, 15908615, 21728840, 22272061, 25453784, 31817230, 44544122, 63634460, 89088244, 111360305, 127268920, 178176488, 222720610, 445441220, 890882440]

約数ペア:

[(1, 890882440), (2, 445441220), (4, 222720610), (5, 178176488), (7, 127268920), (8, 111360305), (10, 89088244), (14, 63634460), (20, 44544122), (28, 31817230), (35, 25453784), (40, 22272061), (41, 21728840), (56, 15908615), (70, 12726892), (71, 12547640), (82, 10864420), (140, 6363446), (142, 6273820), (164, 5432210), (205, 4345768), (280, 3181723), (284, 3136910), (287, 3104120), (328, 2716105), (355, 2509528), (410, 2172884), (497, 1792520), (568, 1568455), (574, 1552060), (710, 1254764), (820, 1086442), (994, 896260), (1093, 815080), (1148, 776030), (1420, 627382), (1435, 620824), (1640, 543221), (1988, 448130), (2186, 407540), (2296, 388015), (2485, 358504), (2840, 313691), (2870, 310412), (2911, 306040), (3976, 224065), (4372, 203770), (4970, 179252), (5465, 163016), (5740, 155206), (5822, 153020), (7651, 116440), (8744, 101885), (9940, 89626), (10930, 81508), (11480, 77603), (11644, 76510), (14555, 61208), (15302, 58220), (19880, 44813), (20377, 43720), (21860, 40754), (23288, 38255), (29110, 30604)]