12428680

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{601}}^1$

素因数の和:670

約数の個数: 64

約数和(自身を含む): 31207680

約数和(自身を除く): 18779000

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 47, 55, 88, 94, 110, 188, 220, 235, 376, 440, 470, 517, 601, 940, 1034, 1202, 1880, 2068, 2404, 2585, 3005, 4136, 4808, 5170, 6010, 6611, 10340, 12020, 13222, 20680, 24040, 26444, 28247, 33055, 52888, 56494, 66110, 112988, 132220, 141235, 225976, 264440, 282470, 310717, 564940, 621434, 1129880, 1242868, 1553585, 2485736, 3107170, 6214340, 12428680]

約数ペア:

[(1, 12428680), (2, 6214340), (4, 3107170), (5, 2485736), (8, 1553585), (10, 1242868), (11, 1129880), (20, 621434), (22, 564940), (40, 310717), (44, 282470), (47, 264440), (55, 225976), (88, 141235), (94, 132220), (110, 112988), (188, 66110), (220, 56494), (235, 52888), (376, 33055), (440, 28247), (470, 26444), (517, 24040), (601, 20680), (940, 13222), (1034, 12020), (1202, 10340), (1880, 6611), (2068, 6010), (2404, 5170), (2585, 4808), (3005, 4136)]