28511560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{9257}}^1$

素因数の和:9286

約数の個数: 64

約数和(自身を含む): 79989120

約数和(自身を除く): 51477560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 9257, 18514, 37028, 46285, 64799, 74056, 92570, 101827, 129598, 185140, 203654, 259196, 323995, 370280, 407308, 509135, 518392, 647990, 712789, 814616, 1018270, 1295980, 1425578, 2036540, 2591960, 2851156, 3563945, 4073080, 5702312, 7127890, 14255780, 28511560]

約数ペア:

[(1, 28511560), (2, 14255780), (4, 7127890), (5, 5702312), (7, 4073080), (8, 3563945), (10, 2851156), (11, 2591960), (14, 2036540), (20, 1425578), (22, 1295980), (28, 1018270), (35, 814616), (40, 712789), (44, 647990), (55, 518392), (56, 509135), (70, 407308), (77, 370280), (88, 323995), (110, 259196), (140, 203654), (154, 185140), (220, 129598), (280, 101827), (308, 92570), (385, 74056), (440, 64799), (616, 46285), (770, 37028), (1540, 18514), (3080, 9257)]