280099160

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{257}}^1\times {\mathrm{2477}}^1$

素因数の和:2756

約数の個数: 64

約数和(自身を含む): 690469920

約数和(自身を除く): 410370760

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 257, 440, 514, 1028, 1285, 2056, 2477, 2570, 2827, 4954, 5140, 5654, 9908, 10280, 11308, 12385, 14135, 19816, 22616, 24770, 27247, 28270, 49540, 54494, 56540, 99080, 108988, 113080, 136235, 217976, 272470, 544940, 636589, 1089880, 1273178, 2546356, 3182945, 5092712, 6365890, 7002479, 12731780, 14004958, 25463560, 28009916, 35012395, 56019832, 70024790, 140049580, 280099160]

約数ペア:

[(1, 280099160), (2, 140049580), (4, 70024790), (5, 56019832), (8, 35012395), (10, 28009916), (11, 25463560), (20, 14004958), (22, 12731780), (40, 7002479), (44, 6365890), (55, 5092712), (88, 3182945), (110, 2546356), (220, 1273178), (257, 1089880), (440, 636589), (514, 544940), (1028, 272470), (1285, 217976), (2056, 136235), (2477, 113080), (2570, 108988), (2827, 99080), (4954, 56540), (5140, 54494), (5654, 49540), (9908, 28270), (10280, 27247), (11308, 24770), (12385, 22616), (14135, 19816)]