19966780

素因数分解:

$2^2\times 5^1\times {\mathrm{59}}^1\times {\mathrm{16921}}^1$

素因数の和:16989

約数の個数: 24

約数和(自身を含む): 42643440

約数和(自身を除く): 22676660

約数列:

[1, 2, 4, 5, 10, 20, 59, 118, 236, 295, 590, 1180, 16921, 33842, 67684, 84605, 169210, 338420, 998339, 1996678, 3993356, 4991695, 9983390, 19966780]

約数ペア:

[(1, 19966780), (2, 9983390), (4, 4991695), (5, 3993356), (10, 1996678), (20, 998339), (59, 338420), (118, 169210), (236, 84605), (295, 67684), (590, 33842), (1180, 16921)]