81720212

素因数分解:

$2^2\times 7^1\times {\mathrm{283}}^1\times {\mathrm{10313}}^1$

素因数の和:10607

約数の個数: 24

約数和(自身を含む): 164033856

約数和(自身を除く): 82313644

約数列:

[1, 2, 4, 7, 14, 28, 283, 566, 1132, 1981, 3962, 7924, 10313, 20626, 41252, 72191, 144382, 288764, 2918579, 5837158, 11674316, 20430053, 40860106, 81720212]

約数ペア:

[(1, 81720212), (2, 40860106), (4, 20430053), (7, 11674316), (14, 5837158), (28, 2918579), (283, 288764), (566, 144382), (1132, 72191), (1981, 41252), (3962, 20626), (7924, 10313)]