17928320

素因数分解:

$2^7\times 5^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:385

約数の個数: 64

約数和(自身を含む): 43421400

約数和(自身を除く): 25493080

約数列:

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

約数ペア:

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