221679260

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{47}}^1\times {\mathrm{1949}}^1$

素因数の和:2027

約数の個数: 72

約数和(自身を含む): 522849600

約数和(自身を除く): 301170340

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 47, 55, 94, 110, 121, 188, 220, 235, 242, 470, 484, 517, 605, 940, 1034, 1210, 1949, 2068, 2420, 2585, 3898, 5170, 5687, 7796, 9745, 10340, 11374, 19490, 21439, 22748, 28435, 38980, 42878, 56870, 85756, 91603, 107195, 113740, 183206, 214390, 235829, 366412, 428780, 458015, 471658, 916030, 943316, 1007633, 1179145, 1832060, 2015266, 2358290, 4030532, 4716580, 5038165, 10076330, 11083963, 20152660, 22167926, 44335852, 55419815, 110839630, 221679260]

約数ペア:

[(1, 221679260), (2, 110839630), (4, 55419815), (5, 44335852), (10, 22167926), (11, 20152660), (20, 11083963), (22, 10076330), (44, 5038165), (47, 4716580), (55, 4030532), (94, 2358290), (110, 2015266), (121, 1832060), (188, 1179145), (220, 1007633), (235, 943316), (242, 916030), (470, 471658), (484, 458015), (517, 428780), (605, 366412), (940, 235829), (1034, 214390), (1210, 183206), (1949, 113740), (2068, 107195), (2420, 91603), (2585, 85756), (3898, 56870), (5170, 42878), (5687, 38980), (7796, 28435), (9745, 22748), (10340, 21439), (11374, 19490)]