218080478

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:438

約数の個数: 72

約数和(自身を含む): 427386456

約数和(自身を除く): 209305978

約数列:

[1, 2, 7, 11, 14, 22, 49, 53, 77, 98, 106, 121, 154, 242, 347, 371, 539, 583, 694, 742, 847, 1078, 1166, 1694, 2429, 2597, 3817, 4081, 4858, 5194, 5929, 6413, 7634, 8162, 11858, 12826, 17003, 18391, 26719, 28567, 34006, 36782, 41987, 44891, 53438, 57134, 83974, 89782, 128737, 187033, 202301, 257474, 293909, 314237, 374066, 404602, 587818, 628474, 901159, 1416107, 1802318, 2057363, 2225311, 2832214, 4114726, 4450622, 9912749, 15577177, 19825498, 31154354, 109040239, 218080478]

約数ペア:

[(1, 218080478), (2, 109040239), (7, 31154354), (11, 19825498), (14, 15577177), (22, 9912749), (49, 4450622), (53, 4114726), (77, 2832214), (98, 2225311), (106, 2057363), (121, 1802318), (154, 1416107), (242, 901159), (347, 628474), (371, 587818), (539, 404602), (583, 374066), (694, 314237), (742, 293909), (847, 257474), (1078, 202301), (1166, 187033), (1694, 128737), (2429, 89782), (2597, 83974), (3817, 57134), (4081, 53438), (4858, 44891), (5194, 41987), (5929, 36782), (6413, 34006), (7634, 28567), (8162, 26719), (11858, 18391), (12826, 17003)]