66577840

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{1949}}^1$

素因数の和:2030

約数の個数: 80

約数和(自身を含む): 179899200

約数和(自身を除く): 113321360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 61, 70, 80, 112, 122, 140, 244, 280, 305, 427, 488, 560, 610, 854, 976, 1220, 1708, 1949, 2135, 2440, 3416, 3898, 4270, 4880, 6832, 7796, 8540, 9745, 13643, 15592, 17080, 19490, 27286, 31184, 34160, 38980, 54572, 68215, 77960, 109144, 118889, 136430, 155920, 218288, 237778, 272860, 475556, 545720, 594445, 832223, 951112, 1091440, 1188890, 1664446, 1902224, 2377780, 3328892, 4161115, 4755560, 6657784, 8322230, 9511120, 13315568, 16644460, 33288920, 66577840]

約数ペア:

[(1, 66577840), (2, 33288920), (4, 16644460), (5, 13315568), (7, 9511120), (8, 8322230), (10, 6657784), (14, 4755560), (16, 4161115), (20, 3328892), (28, 2377780), (35, 1902224), (40, 1664446), (56, 1188890), (61, 1091440), (70, 951112), (80, 832223), (112, 594445), (122, 545720), (140, 475556), (244, 272860), (280, 237778), (305, 218288), (427, 155920), (488, 136430), (560, 118889), (610, 109144), (854, 77960), (976, 68215), (1220, 54572), (1708, 38980), (1949, 34160), (2135, 31184), (2440, 27286), (3416, 19490), (3898, 17080), (4270, 15592), (4880, 13643), (6832, 9745), (7796, 8540)]