81567785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{97}}^1\times {\mathrm{761}}^1$

素因数の和:893

約数の個数: 32

約数和(自身を含む): 112910112

約数和(自身を除く): 31342327

約数列:

[1, 5, 13, 17, 65, 85, 97, 221, 485, 761, 1105, 1261, 1649, 3805, 6305, 8245, 9893, 12937, 21437, 49465, 64685, 73817, 107185, 168181, 369085, 840905, 959621, 1254889, 4798105, 6274445, 16313557, 81567785]

約数ペア:

[(1, 81567785), (5, 16313557), (13, 6274445), (17, 4798105), (65, 1254889), (85, 959621), (97, 840905), (221, 369085), (485, 168181), (761, 107185), (1105, 73817), (1261, 64685), (1649, 49465), (3805, 21437), (6305, 12937), (8245, 9893)]