28383080

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:530

約数の個数: 64

約数和(自身を含む): 70217280

約数和(自身を除く): 41834200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 251, 257, 440, 502, 514, 1004, 1028, 1255, 1285, 2008, 2056, 2510, 2570, 2761, 2827, 5020, 5140, 5522, 5654, 10040, 10280, 11044, 11308, 13805, 14135, 22088, 22616, 27610, 28270, 55220, 56540, 64507, 110440, 113080, 129014, 258028, 322535, 516056, 645070, 709577, 1290140, 1419154, 2580280, 2838308, 3547885, 5676616, 7095770, 14191540, 28383080]

約数ペア:

[(1, 28383080), (2, 14191540), (4, 7095770), (5, 5676616), (8, 3547885), (10, 2838308), (11, 2580280), (20, 1419154), (22, 1290140), (40, 709577), (44, 645070), (55, 516056), (88, 322535), (110, 258028), (220, 129014), (251, 113080), (257, 110440), (440, 64507), (502, 56540), (514, 55220), (1004, 28270), (1028, 27610), (1255, 22616), (1285, 22088), (2008, 14135), (2056, 13805), (2510, 11308), (2570, 11044), (2761, 10280), (2827, 10040), (5020, 5654), (5140, 5522)]