77474740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{499}}^1\times {\mathrm{1109}}^1$

素因数の和:1624

約数の個数: 48

約数和(自身を含む): 186480000

約数和(自身を除く): 109005260

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 499, 998, 1109, 1996, 2218, 2495, 3493, 4436, 4990, 5545, 6986, 7763, 9980, 11090, 13972, 15526, 17465, 22180, 31052, 34930, 38815, 69860, 77630, 155260, 553391, 1106782, 2213564, 2766955, 3873737, 5533910, 7747474, 11067820, 15494948, 19368685, 38737370, 77474740]

約数ペア:

[(1, 77474740), (2, 38737370), (4, 19368685), (5, 15494948), (7, 11067820), (10, 7747474), (14, 5533910), (20, 3873737), (28, 2766955), (35, 2213564), (70, 1106782), (140, 553391), (499, 155260), (998, 77630), (1109, 69860), (1996, 38815), (2218, 34930), (2495, 31052), (3493, 22180), (4436, 17465), (4990, 15526), (5545, 13972), (6986, 11090), (7763, 9980)]