287440160

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{256643}}^1$

素因数の和:256665

約数の個数: 48

約数和(自身を含む): 776091456

約数和(自身を除く): 488651296

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 256643, 513286, 1026572, 1283215, 1796501, 2053144, 2566430, 3593002, 4106288, 5132860, 7186004, 8212576, 8982505, 10265720, 14372008, 17965010, 20531440, 28744016, 35930020, 41062880, 57488032, 71860040, 143720080, 287440160]

約数ペア:

[(1, 287440160), (2, 143720080), (4, 71860040), (5, 57488032), (7, 41062880), (8, 35930020), (10, 28744016), (14, 20531440), (16, 17965010), (20, 14372008), (28, 10265720), (32, 8982505), (35, 8212576), (40, 7186004), (56, 5132860), (70, 4106288), (80, 3593002), (112, 2566430), (140, 2053144), (160, 1796501), (224, 1283215), (280, 1026572), (560, 513286), (1120, 256643)]