18310930

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{409}}^1$

素因数の和:475

約数の個数: 48

約数和(自身を含む): 37298520

約数和(自身を除く): 18987590

約数列:

[1, 2, 5, 10, 11, 22, 37, 55, 74, 110, 121, 185, 242, 370, 407, 409, 605, 814, 818, 1210, 2035, 2045, 4070, 4090, 4477, 4499, 8954, 8998, 15133, 22385, 22495, 30266, 44770, 44990, 49489, 75665, 98978, 151330, 166463, 247445, 332926, 494890, 832315, 1664630, 1831093, 3662186, 9155465, 18310930]

約数ペア:

[(1, 18310930), (2, 9155465), (5, 3662186), (10, 1831093), (11, 1664630), (22, 832315), (37, 494890), (55, 332926), (74, 247445), (110, 166463), (121, 151330), (185, 98978), (242, 75665), (370, 49489), (407, 44990), (409, 44770), (605, 30266), (814, 22495), (818, 22385), (1210, 15133), (2035, 8998), (2045, 8954), (4070, 4499), (4090, 4477)]