261529128

素因数分解:

$2^3\times 3^3\times 7^1\times {\mathrm{172969}}^1$

素因数の和:172991

約数の個数: 64

約数和(自身を含む): 830256000

約数和(自身を除く): 568726872

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 27, 28, 36, 42, 54, 56, 63, 72, 84, 108, 126, 168, 189, 216, 252, 378, 504, 756, 1512, 172969, 345938, 518907, 691876, 1037814, 1210783, 1383752, 1556721, 2075628, 2421566, 3113442, 3632349, 4151256, 4670163, 4843132, 6226884, 7264698, 9340326, 9686264, 10897047, 12453768, 14529396, 18680652, 21794094, 29058792, 32691141, 37361304, 43588188, 65382282, 87176376, 130764564, 261529128]

約数ペア:

[(1, 261529128), (2, 130764564), (3, 87176376), (4, 65382282), (6, 43588188), (7, 37361304), (8, 32691141), (9, 29058792), (12, 21794094), (14, 18680652), (18, 14529396), (21, 12453768), (24, 10897047), (27, 9686264), (28, 9340326), (36, 7264698), (42, 6226884), (54, 4843132), (56, 4670163), (63, 4151256), (72, 3632349), (84, 3113442), (108, 2421566), (126, 2075628), (168, 1556721), (189, 1383752), (216, 1210783), (252, 1037814), (378, 691876), (504, 518907), (756, 345938), (1512, 172969)]