256465206

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{2749}}^1$

素因数の和:2901

約数の個数: 48

約数和(自身を含む): 571428000

約数和(自身を除く): 314962794

約数列:

[1, 2, 3, 6, 9, 18, 71, 73, 142, 146, 213, 219, 426, 438, 639, 657, 1278, 1314, 2749, 5183, 5498, 8247, 10366, 15549, 16494, 24741, 31098, 46647, 49482, 93294, 195179, 200677, 390358, 401354, 585537, 602031, 1171074, 1204062, 1756611, 1806093, 3513222, 3612186, 14248067, 28496134, 42744201, 85488402, 128232603, 256465206]

約数ペア:

[(1, 256465206), (2, 128232603), (3, 85488402), (6, 42744201), (9, 28496134), (18, 14248067), (71, 3612186), (73, 3513222), (142, 1806093), (146, 1756611), (213, 1204062), (219, 1171074), (426, 602031), (438, 585537), (639, 401354), (657, 390358), (1278, 200677), (1314, 195179), (2749, 93294), (5183, 49482), (5498, 46647), (8247, 31098), (10366, 24741), (15549, 16494)]