17161780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{20929}}^1$

素因数の和:20979

約数の個数: 24

約数和(自身を含む): 36920520

約数和(自身を除く): 19758740

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 20929, 41858, 83716, 104645, 209290, 418580, 858089, 1716178, 3432356, 4290445, 8580890, 17161780]

約数ペア:

[(1, 17161780), (2, 8580890), (4, 4290445), (5, 3432356), (10, 1716178), (20, 858089), (41, 418580), (82, 209290), (164, 104645), (205, 83716), (410, 41858), (820, 20929)]