121920800

素因数分解:

$2^5\times 5^2\times {\mathrm{257}}^1\times {\mathrm{593}}^1$

素因数の和:870

約数の個数: 72

約数和(自身を含む): 299301156

約数和(自身を除く): 177380356

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 257, 400, 514, 593, 800, 1028, 1186, 1285, 2056, 2372, 2570, 2965, 4112, 4744, 5140, 5930, 6425, 8224, 9488, 10280, 11860, 12850, 14825, 18976, 20560, 23720, 25700, 29650, 41120, 47440, 51400, 59300, 94880, 102800, 118600, 152401, 205600, 237200, 304802, 474400, 609604, 762005, 1219208, 1524010, 2438416, 3048020, 3810025, 4876832, 6096040, 7620050, 12192080, 15240100, 24384160, 30480200, 60960400, 121920800]

約数ペア:

[(1, 121920800), (2, 60960400), (4, 30480200), (5, 24384160), (8, 15240100), (10, 12192080), (16, 7620050), (20, 6096040), (25, 4876832), (32, 3810025), (40, 3048020), (50, 2438416), (80, 1524010), (100, 1219208), (160, 762005), (200, 609604), (257, 474400), (400, 304802), (514, 237200), (593, 205600), (800, 152401), (1028, 118600), (1186, 102800), (1285, 94880), (2056, 59300), (2372, 51400), (2570, 47440), (2965, 41120), (4112, 29650), (4744, 25700), (5140, 23720), (5930, 20560), (6425, 18976), (8224, 14825), (9488, 12850), (10280, 11860)]