17955140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{463}}^1$

素因数の和:756

約数の個数: 48

約数和(自身を含む): 43341312

約数和(自身を除く): 25386172

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 463, 554, 926, 1108, 1385, 1852, 1939, 2315, 2770, 3241, 3878, 4630, 5540, 6482, 7756, 9260, 9695, 12964, 16205, 19390, 32410, 38780, 64820, 128251, 256502, 513004, 641255, 897757, 1282510, 1795514, 2565020, 3591028, 4488785, 8977570, 17955140]

約数ペア:

[(1, 17955140), (2, 8977570), (4, 4488785), (5, 3591028), (7, 2565020), (10, 1795514), (14, 1282510), (20, 897757), (28, 641255), (35, 513004), (70, 256502), (140, 128251), (277, 64820), (463, 38780), (554, 32410), (926, 19390), (1108, 16205), (1385, 12964), (1852, 9695), (1939, 9260), (2315, 7756), (2770, 6482), (3241, 5540), (3878, 4630)]