18373180

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{499}}^1$

素因数の和:778

約数の個数: 48

約数和(自身を含む): 44352000

約数和(自身を除く): 25978820

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 263, 499, 526, 998, 1052, 1315, 1841, 1996, 2495, 2630, 3493, 3682, 4990, 5260, 6986, 7364, 9205, 9980, 13972, 17465, 18410, 34930, 36820, 69860, 131237, 262474, 524948, 656185, 918659, 1312370, 1837318, 2624740, 3674636, 4593295, 9186590, 18373180]

約数ペア:

[(1, 18373180), (2, 9186590), (4, 4593295), (5, 3674636), (7, 2624740), (10, 1837318), (14, 1312370), (20, 918659), (28, 656185), (35, 524948), (70, 262474), (140, 131237), (263, 69860), (499, 36820), (526, 34930), (998, 18410), (1052, 17465), (1315, 13972), (1841, 9980), (1996, 9205), (2495, 7364), (2630, 6986), (3493, 5260), (3682, 4990)]