81802070

素因数分解:

$2^1\times 5^1\times 7^4\times {\mathrm{3407}}^1$

素因数の和:3442

約数の個数: 40

約数和(自身を含む): 171824544

約数和(自身を除く): 90022474

約数列:

[1, 2, 5, 7, 10, 14, 35, 49, 70, 98, 245, 343, 490, 686, 1715, 2401, 3407, 3430, 4802, 6814, 12005, 17035, 23849, 24010, 34070, 47698, 119245, 166943, 238490, 333886, 834715, 1168601, 1669430, 2337202, 5843005, 8180207, 11686010, 16360414, 40901035, 81802070]

約数ペア:

[(1, 81802070), (2, 40901035), (5, 16360414), (7, 11686010), (10, 8180207), (14, 5843005), (35, 2337202), (49, 1669430), (70, 1168601), (98, 834715), (245, 333886), (343, 238490), (490, 166943), (686, 119245), (1715, 47698), (2401, 34070), (3407, 24010), (3430, 23849), (4802, 17035), (6814, 12005)]