256991856

素因数分解:

$2^4\times 3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{28631}}^1$

素因数の和:28670

約数の個数: 80

約数和(自身を含む): 766879488

約数和(自身を除く): 509887632

約数列:

[1, 2, 3, 4, 6, 8, 11, 12, 16, 17, 22, 24, 33, 34, 44, 48, 51, 66, 68, 88, 102, 132, 136, 176, 187, 204, 264, 272, 374, 408, 528, 561, 748, 816, 1122, 1496, 2244, 2992, 4488, 8976, 28631, 57262, 85893, 114524, 171786, 229048, 314941, 343572, 458096, 486727, 629882, 687144, 944823, 973454, 1259764, 1374288, 1460181, 1889646, 1946908, 2519528, 2920362, 3779292, 3893816, 5039056, 5353997, 5840724, 7558584, 7787632, 10707994, 11681448, 15117168, 16061991, 21415988, 23362896, 32123982, 42831976, 64247964, 85663952, 128495928, 256991856]

約数ペア:

[(1, 256991856), (2, 128495928), (3, 85663952), (4, 64247964), (6, 42831976), (8, 32123982), (11, 23362896), (12, 21415988), (16, 16061991), (17, 15117168), (22, 11681448), (24, 10707994), (33, 7787632), (34, 7558584), (44, 5840724), (48, 5353997), (51, 5039056), (66, 3893816), (68, 3779292), (88, 2920362), (102, 2519528), (132, 1946908), (136, 1889646), (176, 1460181), (187, 1374288), (204, 1259764), (264, 973454), (272, 944823), (374, 687144), (408, 629882), (528, 486727), (561, 458096), (748, 343572), (816, 314941), (1122, 229048), (1496, 171786), (2244, 114524), (2992, 85893), (4488, 57262), (8976, 28631)]