19032020

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2029}}^1$

素因数の和:2112

約数の個数: 48

約数和(自身を含む): 46381440

約数和(自身を除く): 27349420

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 67, 70, 134, 140, 268, 335, 469, 670, 938, 1340, 1876, 2029, 2345, 4058, 4690, 8116, 9380, 10145, 14203, 20290, 28406, 40580, 56812, 71015, 135943, 142030, 271886, 284060, 543772, 679715, 951601, 1359430, 1903202, 2718860, 3806404, 4758005, 9516010, 19032020]

約数ペア:

[(1, 19032020), (2, 9516010), (4, 4758005), (5, 3806404), (7, 2718860), (10, 1903202), (14, 1359430), (20, 951601), (28, 679715), (35, 543772), (67, 284060), (70, 271886), (134, 142030), (140, 135943), (268, 71015), (335, 56812), (469, 40580), (670, 28406), (938, 20290), (1340, 14203), (1876, 10145), (2029, 9380), (2345, 8116), (4058, 4690)]