20108990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16619}}^1$

素因数の和:16648

約数の個数: 24

約数和(自身を含む): 39788280

約数和(自身を除く): 19679290

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16619, 33238, 83095, 166190, 182809, 365618, 914045, 1828090, 2010899, 4021798, 10054495, 20108990]

約数ペア:

[(1, 20108990), (2, 10054495), (5, 4021798), (10, 2010899), (11, 1828090), (22, 914045), (55, 365618), (110, 182809), (121, 166190), (242, 83095), (605, 33238), (1210, 16619)]