289407501

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 448493760

約数和(自身を除く): 159086259

約数列:

[1, 3, 9, 29, 43, 87, 107, 129, 241, 261, 321, 387, 723, 963, 1247, 2169, 3103, 3741, 4601, 6989, 9309, 10363, 11223, 13803, 20967, 25787, 27927, 31089, 41409, 62901, 77361, 93267, 133429, 232083, 300527, 400287, 747823, 901581, 1108841, 1200861, 2243469, 2704743, 3326523, 6730407, 9979569, 32156389, 96469167, 289407501]

約数ペア:

[(1, 289407501), (3, 96469167), (9, 32156389), (29, 9979569), (43, 6730407), (87, 3326523), (107, 2704743), (129, 2243469), (241, 1200861), (261, 1108841), (321, 901581), (387, 747823), (723, 400287), (963, 300527), (1247, 232083), (2169, 133429), (3103, 93267), (3741, 77361), (4601, 62901), (6989, 41409), (9309, 31089), (10363, 27927), (11223, 25787), (13803, 20967)]