20145290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^2\times {\mathrm{16649}}^1$

素因数の和:16678

約数の個数: 24

約数和(自身を含む): 39860100

約数和(自身を除く): 19714810

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 121, 242, 605, 1210, 16649, 33298, 83245, 166490, 183139, 366278, 915695, 1831390, 2014529, 4029058, 10072645, 20145290]

約数ペア:

[(1, 20145290), (2, 10072645), (5, 4029058), (10, 2014529), (11, 1831390), (22, 915695), (55, 366278), (110, 183139), (121, 166490), (242, 83245), (605, 33298), (1210, 16649)]