80779930

素因数分解:

$2^1\times 5^1\times 7^3\times {\mathrm{11}}^1\times {\mathrm{2141}}^1$

素因数の和:2180

約数の個数: 64

約数和(自身を含む): 185068800

約数和(自身を除く): 104288870

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 49, 55, 70, 77, 98, 110, 154, 245, 343, 385, 490, 539, 686, 770, 1078, 1715, 2141, 2695, 3430, 3773, 4282, 5390, 7546, 10705, 14987, 18865, 21410, 23551, 29974, 37730, 47102, 74935, 104909, 117755, 149870, 164857, 209818, 235510, 329714, 524545, 734363, 824285, 1049090, 1153999, 1468726, 1648570, 2307998, 3671815, 5769995, 7343630, 8077993, 11539990, 16155986, 40389965, 80779930]

約数ペア:

[(1, 80779930), (2, 40389965), (5, 16155986), (7, 11539990), (10, 8077993), (11, 7343630), (14, 5769995), (22, 3671815), (35, 2307998), (49, 1648570), (55, 1468726), (70, 1153999), (77, 1049090), (98, 824285), (110, 734363), (154, 524545), (245, 329714), (343, 235510), (385, 209818), (490, 164857), (539, 149870), (686, 117755), (770, 104909), (1078, 74935), (1715, 47102), (2141, 37730), (2695, 29974), (3430, 23551), (3773, 21410), (4282, 18865), (5390, 14987), (7546, 10705)]