28157085

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{283}}^1$

素因数の和:375

約数の個数: 64

約数和(自身を含む): 55618560

約数和(自身を除く): 27461475

約数列:

[1, 3, 5, 9, 11, 15, 27, 33, 45, 55, 67, 99, 135, 165, 201, 283, 297, 335, 495, 603, 737, 849, 1005, 1415, 1485, 1809, 2211, 2547, 3015, 3113, 3685, 4245, 6633, 7641, 9045, 9339, 11055, 12735, 15565, 18961, 19899, 28017, 33165, 38205, 46695, 56883, 84051, 94805, 99495, 140085, 170649, 208571, 284415, 420255, 511947, 625713, 853245, 1042855, 1877139, 2559735, 3128565, 5631417, 9385695, 28157085]

約数ペア:

[(1, 28157085), (3, 9385695), (5, 5631417), (9, 3128565), (11, 2559735), (15, 1877139), (27, 1042855), (33, 853245), (45, 625713), (55, 511947), (67, 420255), (99, 284415), (135, 208571), (165, 170649), (201, 140085), (283, 99495), (297, 94805), (335, 84051), (495, 56883), (603, 46695), (737, 38205), (849, 33165), (1005, 28017), (1415, 19899), (1485, 18961), (1809, 15565), (2211, 12735), (2547, 11055), (3015, 9339), (3113, 9045), (3685, 7641), (4245, 6633)]