81552415

素因数分解:

$5^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{2621}}^1$

素因数の和:2767

約数の個数: 24

約数和(自身を含む): 114780672

約数和(自身を除く): 33228257

約数列:

[1, 5, 7, 35, 49, 127, 245, 635, 889, 2621, 4445, 6223, 13105, 18347, 31115, 91735, 128429, 332867, 642145, 1664335, 2330069, 11650345, 16310483, 81552415]

約数ペア:

[(1, 81552415), (5, 16310483), (7, 11650345), (35, 2330069), (49, 1664335), (127, 642145), (245, 332867), (635, 128429), (889, 91735), (2621, 31115), (4445, 18347), (6223, 13105)]