1243880

素因数分解:

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

素因数の和:290

約数の個数: 48

約数和(自身を含む): 3088260

約数和(自身を除く): 1844380

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 121, 220, 242, 257, 440, 484, 514, 605, 968, 1028, 1210, 1285, 2056, 2420, 2570, 2827, 4840, 5140, 5654, 10280, 11308, 14135, 22616, 28270, 31097, 56540, 62194, 113080, 124388, 155485, 248776, 310970, 621940, 1243880]

約数ペア:

[(1, 1243880), (2, 621940), (4, 310970), (5, 248776), (8, 155485), (10, 124388), (11, 113080), (20, 62194), (22, 56540), (40, 31097), (44, 28270), (55, 22616), (88, 14135), (110, 11308), (121, 10280), (220, 5654), (242, 5140), (257, 4840), (440, 2827), (484, 2570), (514, 2420), (605, 2056), (968, 1285), (1028, 1210)]