990959956

素因数分解:

$2^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{353}}^1\times {\mathrm{937}}^1$

素因数の和:1408

約数の個数: 48

約数和(自身を含む): 2008250496

約数和(自身を除く): 1017290540

約数列:

[1, 2, 4, 7, 14, 28, 107, 214, 353, 428, 706, 749, 937, 1412, 1498, 1874, 2471, 2996, 3748, 4942, 6559, 9884, 13118, 26236, 37771, 75542, 100259, 151084, 200518, 264397, 330761, 401036, 528794, 661522, 701813, 1057588, 1323044, 1403626, 2315327, 2807252, 4630654, 9261308, 35391427, 70782854, 141565708, 247739989, 495479978, 990959956]

約数ペア:

[(1, 990959956), (2, 495479978), (4, 247739989), (7, 141565708), (14, 70782854), (28, 35391427), (107, 9261308), (214, 4630654), (353, 2807252), (428, 2315327), (706, 1403626), (749, 1323044), (937, 1057588), (1412, 701813), (1498, 661522), (1874, 528794), (2471, 401036), (2996, 330761), (3748, 264397), (4942, 200518), (6559, 151084), (9884, 100259), (13118, 75542), (26236, 37771)]