19351220

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{277}}^1\times {\mathrm{499}}^1$

素因数の和:792

約数の個数: 48

約数和(自身を含む): 46704000

約数和(自身を除く): 27352780

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 277, 499, 554, 998, 1108, 1385, 1939, 1996, 2495, 2770, 3493, 3878, 4990, 5540, 6986, 7756, 9695, 9980, 13972, 17465, 19390, 34930, 38780, 69860, 138223, 276446, 552892, 691115, 967561, 1382230, 1935122, 2764460, 3870244, 4837805, 9675610, 19351220]

約数ペア:

[(1, 19351220), (2, 9675610), (4, 4837805), (5, 3870244), (7, 2764460), (10, 1935122), (14, 1382230), (20, 967561), (28, 691115), (35, 552892), (70, 276446), (140, 138223), (277, 69860), (499, 38780), (554, 34930), (998, 19390), (1108, 17465), (1385, 13972), (1939, 9980), (1996, 9695), (2495, 7756), (2770, 6986), (3493, 5540), (3878, 4990)]