20008240

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{35729}}^1$

素因数の和:35749

約数の個数: 40

約数和(自身を含む): 53166240

約数和(自身を除く): 33158000

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 70, 80, 112, 140, 280, 560, 35729, 71458, 142916, 178645, 250103, 285832, 357290, 500206, 571664, 714580, 1000412, 1250515, 1429160, 2000824, 2501030, 2858320, 4001648, 5002060, 10004120, 20008240]

約数ペア:

[(1, 20008240), (2, 10004120), (4, 5002060), (5, 4001648), (7, 2858320), (8, 2501030), (10, 2000824), (14, 1429160), (16, 1250515), (20, 1000412), (28, 714580), (35, 571664), (40, 500206), (56, 357290), (70, 285832), (80, 250103), (112, 178645), (140, 142916), (280, 71458), (560, 35729)]