1081580

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{1319}}^1$

素因数の和:1369

約数の個数: 24

約数和(自身を含む): 2328480

約数和(自身を除く): 1246900

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 1319, 2638, 5276, 6595, 13190, 26380, 54079, 108158, 216316, 270395, 540790, 1081580]

約数ペア:

[(1, 1081580), (2, 540790), (4, 270395), (5, 216316), (10, 108158), (20, 54079), (41, 26380), (82, 13190), (164, 6595), (205, 5276), (410, 2638), (820, 1319)]