28207335

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1$

素因数の和:232

約数の個数: 64

約数和(自身を含む): 52641792

約数和(自身を除く): 24434457

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 67, 85, 127, 195, 201, 221, 255, 335, 381, 635, 663, 871, 1005, 1105, 1139, 1651, 1905, 2159, 2613, 3315, 3417, 4355, 4953, 5695, 6477, 8255, 8509, 10795, 13065, 14807, 17085, 24765, 25527, 28067, 32385, 42545, 44421, 74035, 84201, 110617, 127635, 140335, 144653, 222105, 331851, 421005, 433959, 553085, 723265, 1659255, 1880489, 2169795, 5641467, 9402445, 28207335]

約数ペア:

[(1, 28207335), (3, 9402445), (5, 5641467), (13, 2169795), (15, 1880489), (17, 1659255), (39, 723265), (51, 553085), (65, 433959), (67, 421005), (85, 331851), (127, 222105), (195, 144653), (201, 140335), (221, 127635), (255, 110617), (335, 84201), (381, 74035), (635, 44421), (663, 42545), (871, 32385), (1005, 28067), (1105, 25527), (1139, 24765), (1651, 17085), (1905, 14807), (2159, 13065), (2613, 10795), (3315, 8509), (3417, 8255), (4355, 6477), (4953, 5695)]