235640720

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{491}}^1\times {\mathrm{857}}^1$

素因数の和:1368

約数の個数: 80

約数和(自身を含む): 628138368

約数和(自身を除く): 392497648

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 491, 560, 857, 982, 1714, 1964, 2455, 3428, 3437, 3928, 4285, 4910, 5999, 6856, 6874, 7856, 8570, 9820, 11998, 13712, 13748, 17140, 17185, 19640, 23996, 27496, 29995, 34280, 34370, 39280, 47992, 54992, 59990, 68560, 68740, 95984, 119980, 137480, 239960, 274960, 420787, 479920, 841574, 1683148, 2103935, 2945509, 3366296, 4207870, 5891018, 6732592, 8415740, 11782036, 14727545, 16831480, 23564072, 29455090, 33662960, 47128144, 58910180, 117820360, 235640720]

約数ペア:

[(1, 235640720), (2, 117820360), (4, 58910180), (5, 47128144), (7, 33662960), (8, 29455090), (10, 23564072), (14, 16831480), (16, 14727545), (20, 11782036), (28, 8415740), (35, 6732592), (40, 5891018), (56, 4207870), (70, 3366296), (80, 2945509), (112, 2103935), (140, 1683148), (280, 841574), (491, 479920), (560, 420787), (857, 274960), (982, 239960), (1714, 137480), (1964, 119980), (2455, 95984), (3428, 68740), (3437, 68560), (3928, 59990), (4285, 54992), (4910, 47992), (5999, 39280), (6856, 34370), (6874, 34280), (7856, 29995), (8570, 27496), (9820, 23996), (11998, 19640), (13712, 17185), (13748, 17140)]