78818060

素因数分解:

$2^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{191}}^1\times {\mathrm{439}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 170311680

約数和(自身を除く): 91493620

約数列:

[1, 2, 4, 5, 10, 20, 47, 94, 188, 191, 235, 382, 439, 470, 764, 878, 940, 955, 1756, 1910, 2195, 3820, 4390, 8780, 8977, 17954, 20633, 35908, 41266, 44885, 82532, 83849, 89770, 103165, 167698, 179540, 206330, 335396, 412660, 419245, 838490, 1676980, 3940903, 7881806, 15763612, 19704515, 39409030, 78818060]

約数ペア:

[(1, 78818060), (2, 39409030), (4, 19704515), (5, 15763612), (10, 7881806), (20, 3940903), (47, 1676980), (94, 838490), (188, 419245), (191, 412660), (235, 335396), (382, 206330), (439, 179540), (470, 167698), (764, 103165), (878, 89770), (940, 83849), (955, 82532), (1756, 44885), (1910, 41266), (2195, 35908), (3820, 20633), (4390, 17954), (8780, 8977)]