28374795

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:272

約数の個数: 48

約数和(自身を含む): 50948352

約数和(自身を除く): 22573557

約数列:

[1, 3, 5, 9, 15, 45, 71, 83, 107, 213, 249, 321, 355, 415, 535, 639, 747, 963, 1065, 1245, 1605, 3195, 3735, 4815, 5893, 7597, 8881, 17679, 22791, 26643, 29465, 37985, 44405, 53037, 68373, 79929, 88395, 113955, 133215, 265185, 341865, 399645, 630551, 1891653, 3152755, 5674959, 9458265, 28374795]

約数ペア:

[(1, 28374795), (3, 9458265), (5, 5674959), (9, 3152755), (15, 1891653), (45, 630551), (71, 399645), (83, 341865), (107, 265185), (213, 133215), (249, 113955), (321, 88395), (355, 79929), (415, 68373), (535, 53037), (639, 44405), (747, 37985), (963, 29465), (1065, 26643), (1245, 22791), (1605, 17679), (3195, 8881), (3735, 7597), (4815, 5893)]