28971320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{967}}^1$

素因数の和:1092

約数の個数: 64

約数和(自身を含む): 75271680

約数和(自身を除く): 46300360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 107, 140, 214, 280, 428, 535, 749, 856, 967, 1070, 1498, 1934, 2140, 2996, 3745, 3868, 4280, 4835, 5992, 6769, 7490, 7736, 9670, 13538, 14980, 19340, 27076, 29960, 33845, 38680, 54152, 67690, 103469, 135380, 206938, 270760, 413876, 517345, 724283, 827752, 1034690, 1448566, 2069380, 2897132, 3621415, 4138760, 5794264, 7242830, 14485660, 28971320]

約数ペア:

[(1, 28971320), (2, 14485660), (4, 7242830), (5, 5794264), (7, 4138760), (8, 3621415), (10, 2897132), (14, 2069380), (20, 1448566), (28, 1034690), (35, 827752), (40, 724283), (56, 517345), (70, 413876), (107, 270760), (140, 206938), (214, 135380), (280, 103469), (428, 67690), (535, 54152), (749, 38680), (856, 33845), (967, 29960), (1070, 27076), (1498, 19340), (1934, 14980), (2140, 13538), (2996, 9670), (3745, 7736), (3868, 7490), (4280, 6769), (4835, 5992)]