18531260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{643}}^1$

素因数の和:794

約数の個数: 48

約数和(自身を含む): 42844032

約数和(自身を除く): 24312772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 131, 220, 262, 524, 643, 655, 1286, 1310, 1441, 2572, 2620, 2882, 3215, 5764, 6430, 7073, 7205, 12860, 14146, 14410, 28292, 28820, 35365, 70730, 84233, 141460, 168466, 336932, 421165, 842330, 926563, 1684660, 1853126, 3706252, 4632815, 9265630, 18531260]

約数ペア:

[(1, 18531260), (2, 9265630), (4, 4632815), (5, 3706252), (10, 1853126), (11, 1684660), (20, 926563), (22, 842330), (44, 421165), (55, 336932), (110, 168466), (131, 141460), (220, 84233), (262, 70730), (524, 35365), (643, 28820), (655, 28292), (1286, 14410), (1310, 14146), (1441, 12860), (2572, 7205), (2620, 7073), (2882, 6430), (3215, 5764)]