19558180

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{33721}}^1$

素因数の和:33759

約数の個数: 24

約数和(自身を含む): 42489720

約数和(自身を除く): 22931540

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 33721, 67442, 134884, 168605, 337210, 674420, 977909, 1955818, 3911636, 4889545, 9779090, 19558180]

約数ペア:

[(1, 19558180), (2, 9779090), (4, 4889545), (5, 3911636), (10, 1955818), (20, 977909), (29, 674420), (58, 337210), (116, 168605), (145, 134884), (290, 67442), (580, 33721)]