3921820

素因数分解:

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

素因数の和:382

約数の個数: 48

約数和(自身を含む): 9535680

約数和(自身を除く): 5613860

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 109, 140, 218, 257, 436, 514, 545, 763, 1028, 1090, 1285, 1526, 1799, 2180, 2570, 3052, 3598, 3815, 5140, 7196, 7630, 8995, 15260, 17990, 28013, 35980, 56026, 112052, 140065, 196091, 280130, 392182, 560260, 784364, 980455, 1960910, 3921820]

約数ペア:

[(1, 3921820), (2, 1960910), (4, 980455), (5, 784364), (7, 560260), (10, 392182), (14, 280130), (20, 196091), (28, 140065), (35, 112052), (70, 56026), (109, 35980), (140, 28013), (218, 17990), (257, 15260), (436, 8995), (514, 7630), (545, 7196), (763, 5140), (1028, 3815), (1090, 3598), (1285, 3052), (1526, 2570), (1799, 2180)]