72756957

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 64

約数和(自身を含む): 128991744

約数和(自身を除く): 56234787

約数列:

[1, 3, 7, 13, 17, 21, 39, 51, 61, 91, 119, 183, 221, 257, 273, 357, 427, 663, 771, 793, 1037, 1281, 1547, 1799, 2379, 3111, 3341, 4369, 4641, 5397, 5551, 7259, 10023, 13107, 13481, 15677, 16653, 21777, 23387, 30583, 40443, 47031, 56797, 70161, 91749, 94367, 109739, 170391, 203801, 266509, 283101, 329217, 397579, 611403, 799527, 1192737, 1426607, 1865563, 3464617, 4279821, 5596689, 10393851, 24252319, 72756957]

約数ペア:

[(1, 72756957), (3, 24252319), (7, 10393851), (13, 5596689), (17, 4279821), (21, 3464617), (39, 1865563), (51, 1426607), (61, 1192737), (91, 799527), (119, 611403), (183, 397579), (221, 329217), (257, 283101), (273, 266509), (357, 203801), (427, 170391), (663, 109739), (771, 94367), (793, 91749), (1037, 70161), (1281, 56797), (1547, 47031), (1799, 40443), (2379, 30583), (3111, 23387), (3341, 21777), (4369, 16653), (4641, 15677), (5397, 13481), (5551, 13107), (7259, 10023)]