8510780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{107}}^1$

素因数の和:254

約数の個数: 48

約数和(自身を含む): 18670176

約数和(自身を除く): 10159396

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 97, 107, 164, 194, 205, 214, 388, 410, 428, 485, 535, 820, 970, 1070, 1940, 2140, 3977, 4387, 7954, 8774, 10379, 15908, 17548, 19885, 20758, 21935, 39770, 41516, 43870, 51895, 79540, 87740, 103790, 207580, 425539, 851078, 1702156, 2127695, 4255390, 8510780]

約数ペア:

[(1, 8510780), (2, 4255390), (4, 2127695), (5, 1702156), (10, 851078), (20, 425539), (41, 207580), (82, 103790), (97, 87740), (107, 79540), (164, 51895), (194, 43870), (205, 41516), (214, 39770), (388, 21935), (410, 20758), (428, 19885), (485, 17548), (535, 15908), (820, 10379), (970, 8774), (1070, 7954), (1940, 4387), (2140, 3977)]