20685850

素因数分解:

$2^1\times 5^2\times {\mathrm{71}}^1\times {\mathrm{5827}}^1$

素因数の和:5910

約数の個数: 24

約数和(自身を含む): 39024288

約数和(自身を除く): 18338438

約数列:

[1, 2, 5, 10, 25, 50, 71, 142, 355, 710, 1775, 3550, 5827, 11654, 29135, 58270, 145675, 291350, 413717, 827434, 2068585, 4137170, 10342925, 20685850]

約数ペア:

[(1, 20685850), (2, 10342925), (5, 4137170), (10, 2068585), (25, 827434), (50, 413717), (71, 291350), (142, 145675), (355, 58270), (710, 29135), (1775, 11654), (3550, 5827)]