71713280

素因数分解:

$2^9\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:389

約数の個数: 80

約数和(自身を含む): 174196440

約数和(自身を除く): 102483160

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 109, 128, 160, 218, 256, 257, 320, 436, 512, 514, 545, 640, 872, 1028, 1090, 1280, 1285, 1744, 2056, 2180, 2560, 2570, 3488, 4112, 4360, 5140, 6976, 8224, 8720, 10280, 13952, 16448, 17440, 20560, 27904, 28013, 32896, 34880, 41120, 55808, 56026, 65792, 69760, 82240, 112052, 131584, 139520, 140065, 164480, 224104, 279040, 280130, 328960, 448208, 560260, 657920, 896416, 1120520, 1792832, 2241040, 3585664, 4482080, 7171328, 8964160, 14342656, 17928320, 35856640, 71713280]

約数ペア:

[(1, 71713280), (2, 35856640), (4, 17928320), (5, 14342656), (8, 8964160), (10, 7171328), (16, 4482080), (20, 3585664), (32, 2241040), (40, 1792832), (64, 1120520), (80, 896416), (109, 657920), (128, 560260), (160, 448208), (218, 328960), (256, 280130), (257, 279040), (320, 224104), (436, 164480), (512, 140065), (514, 139520), (545, 131584), (640, 112052), (872, 82240), (1028, 69760), (1090, 65792), (1280, 56026), (1285, 55808), (1744, 41120), (2056, 34880), (2180, 32896), (2560, 28013), (2570, 27904), (3488, 20560), (4112, 17440), (4360, 16448), (5140, 13952), (6976, 10280), (8224, 8720)]