17120780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20879}}^1$

素因数の和:20929

約数の個数: 24

約数和(自身を含む): 36832320

約数和(自身を除く): 19711540

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20879, 41758, 83516, 104395, 208790, 417580, 856039, 1712078, 3424156, 4280195, 8560390, 17120780]

約数ペア:

[(1, 17120780), (2, 8560390), (4, 4280195), (5, 3424156), (10, 1712078), (20, 856039), (41, 417580), (82, 208790), (164, 104395), (205, 83516), (410, 41758), (820, 20879)]