78814720

素因数分解:

$2^9\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1811}}^1$

素因数の和:1851

約数の個数: 80

約数和(自身を含む): 200197008

約数和(自身を除く): 121382288

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 64, 68, 80, 85, 128, 136, 160, 170, 256, 272, 320, 340, 512, 544, 640, 680, 1088, 1280, 1360, 1811, 2176, 2560, 2720, 3622, 4352, 5440, 7244, 8704, 9055, 10880, 14488, 18110, 21760, 28976, 30787, 36220, 43520, 57952, 61574, 72440, 115904, 123148, 144880, 153935, 231808, 246296, 289760, 307870, 463616, 492592, 579520, 615740, 927232, 985184, 1159040, 1231480, 1970368, 2318080, 2462960, 3940736, 4636160, 4925920, 7881472, 9851840, 15762944, 19703680, 39407360, 78814720]

約数ペア:

[(1, 78814720), (2, 39407360), (4, 19703680), (5, 15762944), (8, 9851840), (10, 7881472), (16, 4925920), (17, 4636160), (20, 3940736), (32, 2462960), (34, 2318080), (40, 1970368), (64, 1231480), (68, 1159040), (80, 985184), (85, 927232), (128, 615740), (136, 579520), (160, 492592), (170, 463616), (256, 307870), (272, 289760), (320, 246296), (340, 231808), (512, 153935), (544, 144880), (640, 123148), (680, 115904), (1088, 72440), (1280, 61574), (1360, 57952), (1811, 43520), (2176, 36220), (2560, 30787), (2720, 28976), (3622, 21760), (4352, 18110), (5440, 14488), (7244, 10880), (8704, 9055)]