102400780

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{2657}}^1$

素因数の和:2754

約数の個数: 48

約数和(自身を含む): 225058176

約数和(自身を除く): 122657396

約数列:

[1, 2, 4, 5, 10, 20, 41, 47, 82, 94, 164, 188, 205, 235, 410, 470, 820, 940, 1927, 2657, 3854, 5314, 7708, 9635, 10628, 13285, 19270, 26570, 38540, 53140, 108937, 124879, 217874, 249758, 435748, 499516, 544685, 624395, 1089370, 1248790, 2178740, 2497580, 5120039, 10240078, 20480156, 25600195, 51200390, 102400780]

約数ペア:

[(1, 102400780), (2, 51200390), (4, 25600195), (5, 20480156), (10, 10240078), (20, 5120039), (41, 2497580), (47, 2178740), (82, 1248790), (94, 1089370), (164, 624395), (188, 544685), (205, 499516), (235, 435748), (410, 249758), (470, 217874), (820, 124879), (940, 108937), (1927, 53140), (2657, 38540), (3854, 26570), (5314, 19270), (7708, 13285), (9635, 10628)]