81305294

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{907}}^1$

素因数の和:1272

約数の個数: 32

約数和(自身を含む): 147313920

約数和(自身を除く): 66008626

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 337, 674, 907, 1814, 2359, 4718, 6349, 6403, 12698, 12806, 17233, 34466, 44821, 89642, 120631, 241262, 305659, 611318, 2139613, 4279226, 5807521, 11615042, 40652647, 81305294]

約数ペア:

[(1, 81305294), (2, 40652647), (7, 11615042), (14, 5807521), (19, 4279226), (38, 2139613), (133, 611318), (266, 305659), (337, 241262), (674, 120631), (907, 89642), (1814, 44821), (2359, 34466), (4718, 17233), (6349, 12806), (6403, 12698)]