261628272

素因数分解:

$2^4\times 3^3\times {\mathrm{659}}^1\times {\mathrm{919}}^1$

素因数の和:1595

約数の個数: 80

約数和(自身を含む): 752928000

約数和(自身を除く): 491299728

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432, 659, 919, 1318, 1838, 1977, 2636, 2757, 3676, 3954, 5272, 5514, 5931, 7352, 7908, 8271, 10544, 11028, 11862, 14704, 15816, 16542, 17793, 22056, 23724, 24813, 31632, 33084, 35586, 44112, 47448, 49626, 66168, 71172, 94896, 99252, 132336, 142344, 198504, 284688, 397008, 605621, 1211242, 1816863, 2422484, 3633726, 4844968, 5450589, 7267452, 9689936, 10901178, 14534904, 16351767, 21802356, 29069808, 32703534, 43604712, 65407068, 87209424, 130814136, 261628272]

約数ペア:

[(1, 261628272), (2, 130814136), (3, 87209424), (4, 65407068), (6, 43604712), (8, 32703534), (9, 29069808), (12, 21802356), (16, 16351767), (18, 14534904), (24, 10901178), (27, 9689936), (36, 7267452), (48, 5450589), (54, 4844968), (72, 3633726), (108, 2422484), (144, 1816863), (216, 1211242), (432, 605621), (659, 397008), (919, 284688), (1318, 198504), (1838, 142344), (1977, 132336), (2636, 99252), (2757, 94896), (3676, 71172), (3954, 66168), (5272, 49626), (5514, 47448), (5931, 44112), (7352, 35586), (7908, 33084), (8271, 31632), (10544, 24813), (11028, 23724), (11862, 22056), (14704, 17793), (15816, 16542)]