8554280

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:378

約数の個数: 64

約数和(自身を含む): 22256640

約数和(自身を除く): 13702360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 137, 140, 223, 274, 280, 446, 548, 685, 892, 959, 1096, 1115, 1370, 1561, 1784, 1918, 2230, 2740, 3122, 3836, 4460, 4795, 5480, 6244, 7672, 7805, 8920, 9590, 12488, 15610, 19180, 30551, 31220, 38360, 61102, 62440, 122204, 152755, 213857, 244408, 305510, 427714, 611020, 855428, 1069285, 1222040, 1710856, 2138570, 4277140, 8554280]

約数ペア:

[(1, 8554280), (2, 4277140), (4, 2138570), (5, 1710856), (7, 1222040), (8, 1069285), (10, 855428), (14, 611020), (20, 427714), (28, 305510), (35, 244408), (40, 213857), (56, 152755), (70, 122204), (137, 62440), (140, 61102), (223, 38360), (274, 31220), (280, 30551), (446, 19180), (548, 15610), (685, 12488), (892, 9590), (959, 8920), (1096, 7805), (1115, 7672), (1370, 6244), (1561, 5480), (1784, 4795), (1918, 4460), (2230, 3836), (2740, 3122)]