15805665

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:199

約数の個数: 64

約数和(自身を含む): 30481920

約数和(自身を除く): 14676255

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 71, 85, 97, 135, 153, 213, 255, 291, 355, 459, 485, 639, 765, 873, 1065, 1207, 1455, 1649, 1917, 2295, 2619, 3195, 3621, 4365, 4947, 6035, 6887, 8245, 9585, 10863, 13095, 14841, 18105, 20661, 24735, 32589, 34435, 44523, 54315, 61983, 74205, 103305, 117079, 162945, 185949, 222615, 309915, 351237, 585395, 929745, 1053711, 1756185, 3161133, 5268555, 15805665]

約数ペア:

[(1, 15805665), (3, 5268555), (5, 3161133), (9, 1756185), (15, 1053711), (17, 929745), (27, 585395), (45, 351237), (51, 309915), (71, 222615), (85, 185949), (97, 162945), (135, 117079), (153, 103305), (213, 74205), (255, 61983), (291, 54315), (355, 44523), (459, 34435), (485, 32589), (639, 24735), (765, 20661), (873, 18105), (1065, 14841), (1207, 13095), (1455, 10863), (1649, 9585), (1917, 8245), (2295, 6887), (2619, 6035), (3195, 4947), (3621, 4365)]