259636720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{857}}^1$

素因数の和:1418

約数の個数: 80

約数和(自身を含む): 691973568

約数和(自身を除く): 432336848

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 541, 560, 857, 1082, 1714, 2164, 2705, 3428, 3787, 4285, 4328, 5410, 5999, 6856, 7574, 8570, 8656, 10820, 11998, 13712, 15148, 17140, 18935, 21640, 23996, 29995, 30296, 34280, 37870, 43280, 47992, 59990, 60592, 68560, 75740, 95984, 119980, 151480, 239960, 302960, 463637, 479920, 927274, 1854548, 2318185, 3245459, 3709096, 4636370, 6490918, 7418192, 9272740, 12981836, 16227295, 18545480, 25963672, 32454590, 37090960, 51927344, 64909180, 129818360, 259636720]

約数ペア:

[(1, 259636720), (2, 129818360), (4, 64909180), (5, 51927344), (7, 37090960), (8, 32454590), (10, 25963672), (14, 18545480), (16, 16227295), (20, 12981836), (28, 9272740), (35, 7418192), (40, 6490918), (56, 4636370), (70, 3709096), (80, 3245459), (112, 2318185), (140, 1854548), (280, 927274), (541, 479920), (560, 463637), (857, 302960), (1082, 239960), (1714, 151480), (2164, 119980), (2705, 95984), (3428, 75740), (3787, 68560), (4285, 60592), (4328, 59990), (5410, 47992), (5999, 43280), (6856, 37870), (7574, 34280), (8570, 30296), (8656, 29995), (10820, 23996), (11998, 21640), (13712, 18935), (15148, 17140)]