8028680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{257}}^1$

素因数の和:350

約数の個数: 64

約数和(自身を含む): 20062080

約数和(自身を除く): 12033400

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 257, 284, 355, 440, 514, 568, 710, 781, 1028, 1285, 1420, 1562, 2056, 2570, 2827, 2840, 3124, 3905, 5140, 5654, 6248, 7810, 10280, 11308, 14135, 15620, 18247, 22616, 28270, 31240, 36494, 56540, 72988, 91235, 113080, 145976, 182470, 200717, 364940, 401434, 729880, 802868, 1003585, 1605736, 2007170, 4014340, 8028680]

約数ペア:

[(1, 8028680), (2, 4014340), (4, 2007170), (5, 1605736), (8, 1003585), (10, 802868), (11, 729880), (20, 401434), (22, 364940), (40, 200717), (44, 182470), (55, 145976), (71, 113080), (88, 91235), (110, 72988), (142, 56540), (220, 36494), (257, 31240), (284, 28270), (355, 22616), (440, 18247), (514, 15620), (568, 14135), (710, 11308), (781, 10280), (1028, 7810), (1285, 6248), (1420, 5654), (1562, 5140), (2056, 3905), (2570, 3124), (2827, 2840)]