647260728

素因数分解:

$2^3\times 3^1\times {\mathrm{139}}^1\times {\mathrm{251}}^1\times {\mathrm{773}}^1$

素因数の和:1172

約数の個数: 64

約数和(自身を含む): 1638403200

約数和(自身を除く): 991142472

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 139, 251, 278, 417, 502, 556, 753, 773, 834, 1004, 1112, 1506, 1546, 1668, 2008, 2319, 3012, 3092, 3336, 4638, 6024, 6184, 9276, 18552, 34889, 69778, 104667, 107447, 139556, 194023, 209334, 214894, 279112, 322341, 388046, 418668, 429788, 582069, 644682, 776092, 837336, 859576, 1164138, 1289364, 1552184, 2328276, 2578728, 4656552, 26969197, 53938394, 80907591, 107876788, 161815182, 215753576, 323630364, 647260728]

約数ペア:

[(1, 647260728), (2, 323630364), (3, 215753576), (4, 161815182), (6, 107876788), (8, 80907591), (12, 53938394), (24, 26969197), (139, 4656552), (251, 2578728), (278, 2328276), (417, 1552184), (502, 1289364), (556, 1164138), (753, 859576), (773, 837336), (834, 776092), (1004, 644682), (1112, 582069), (1506, 429788), (1546, 418668), (1668, 388046), (2008, 322341), (2319, 279112), (3012, 214894), (3092, 209334), (3336, 194023), (4638, 139556), (6024, 107447), (6184, 104667), (9276, 69778), (18552, 34889)]