28644880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:824

約数の個数: 80

約数和(自身を含む): 74441664

約数和(自身を除く): 45796784

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 43, 44, 55, 80, 86, 88, 110, 172, 176, 215, 220, 344, 430, 440, 473, 688, 757, 860, 880, 946, 1514, 1720, 1892, 2365, 3028, 3440, 3784, 3785, 4730, 6056, 7568, 7570, 8327, 9460, 12112, 15140, 16654, 18920, 30280, 32551, 33308, 37840, 41635, 60560, 65102, 66616, 83270, 130204, 133232, 162755, 166540, 260408, 325510, 333080, 358061, 520816, 651020, 666160, 716122, 1302040, 1432244, 1790305, 2604080, 2864488, 3580610, 5728976, 7161220, 14322440, 28644880]

約数ペア:

[(1, 28644880), (2, 14322440), (4, 7161220), (5, 5728976), (8, 3580610), (10, 2864488), (11, 2604080), (16, 1790305), (20, 1432244), (22, 1302040), (40, 716122), (43, 666160), (44, 651020), (55, 520816), (80, 358061), (86, 333080), (88, 325510), (110, 260408), (172, 166540), (176, 162755), (215, 133232), (220, 130204), (344, 83270), (430, 66616), (440, 65102), (473, 60560), (688, 41635), (757, 37840), (860, 33308), (880, 32551), (946, 30280), (1514, 18920), (1720, 16654), (1892, 15140), (2365, 12112), (3028, 9460), (3440, 8327), (3784, 7570), (3785, 7568), (4730, 6056)]