78436400

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{257}}^1$

素因数の和:391

約数の個数: 120

約数和(自身を含む): 218185440

約数和(自身を除く): 139749040

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 109, 112, 140, 175, 200, 218, 257, 280, 350, 400, 436, 514, 545, 560, 700, 763, 872, 1028, 1090, 1285, 1400, 1526, 1744, 1799, 2056, 2180, 2570, 2725, 2800, 3052, 3598, 3815, 4112, 4360, 5140, 5450, 6104, 6425, 7196, 7630, 8720, 8995, 10280, 10900, 12208, 12850, 14392, 15260, 17990, 19075, 20560, 21800, 25700, 28013, 28784, 30520, 35980, 38150, 43600, 44975, 51400, 56026, 61040, 71960, 76300, 89950, 102800, 112052, 140065, 143920, 152600, 179900, 196091, 224104, 280130, 305200, 359800, 392182, 448208, 560260, 700325, 719600, 784364, 980455, 1120520, 1400650, 1568728, 1960910, 2241040, 2801300, 3137456, 3921820, 4902275, 5602600, 7843640, 9804550, 11205200, 15687280, 19609100, 39218200, 78436400]

約数ペア:

[(1, 78436400), (2, 39218200), (4, 19609100), (5, 15687280), (7, 11205200), (8, 9804550), (10, 7843640), (14, 5602600), (16, 4902275), (20, 3921820), (25, 3137456), (28, 2801300), (35, 2241040), (40, 1960910), (50, 1568728), (56, 1400650), (70, 1120520), (80, 980455), (100, 784364), (109, 719600), (112, 700325), (140, 560260), (175, 448208), (200, 392182), (218, 359800), (257, 305200), (280, 280130), (350, 224104), (400, 196091), (436, 179900), (514, 152600), (545, 143920), (560, 140065), (700, 112052), (763, 102800), (872, 89950), (1028, 76300), (1090, 71960), (1285, 61040), (1400, 56026), (1526, 51400), (1744, 44975), (1799, 43600), (2056, 38150), (2180, 35980), (2570, 30520), (2725, 28784), (2800, 28013), (3052, 25700), (3598, 21800), (3815, 20560), (4112, 19075), (4360, 17990), (5140, 15260), (5450, 14392), (6104, 12850), (6425, 12208), (7196, 10900), (7630, 10280), (8720, 8995)]