2580656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{653}}^1$

素因数の和:693

約数の個数: 40

約数和(自身を含む): 5676720

約数和(自身を除く): 3096064

約数列:

[1, 2, 4, 8, 13, 16, 19, 26, 38, 52, 76, 104, 152, 208, 247, 304, 494, 653, 988, 1306, 1976, 2612, 3952, 5224, 8489, 10448, 12407, 16978, 24814, 33956, 49628, 67912, 99256, 135824, 161291, 198512, 322582, 645164, 1290328, 2580656]

約数ペア:

[(1, 2580656), (2, 1290328), (4, 645164), (8, 322582), (13, 198512), (16, 161291), (19, 135824), (26, 99256), (38, 67912), (52, 49628), (76, 33956), (104, 24814), (152, 16978), (208, 12407), (247, 10448), (304, 8489), (494, 5224), (653, 3952), (988, 2612), (1306, 1976)]