201221768

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1297}}^1$

素因数の和:1398

約数の個数: 64

約数和(自身を含む): 431766720

約数和(自身を除く): 230544952

約数列:

[1, 2, 4, 8, 11, 22, 41, 43, 44, 82, 86, 88, 164, 172, 328, 344, 451, 473, 902, 946, 1297, 1763, 1804, 1892, 2594, 3526, 3608, 3784, 5188, 7052, 10376, 14104, 14267, 19393, 28534, 38786, 53177, 55771, 57068, 77572, 106354, 111542, 114136, 155144, 212708, 223084, 425416, 446168, 584947, 613481, 1169894, 1226962, 2286611, 2339788, 2453924, 4573222, 4679576, 4907848, 9146444, 18292888, 25152721, 50305442, 100610884, 201221768]

約数ペア:

[(1, 201221768), (2, 100610884), (4, 50305442), (8, 25152721), (11, 18292888), (22, 9146444), (41, 4907848), (43, 4679576), (44, 4573222), (82, 2453924), (86, 2339788), (88, 2286611), (164, 1226962), (172, 1169894), (328, 613481), (344, 584947), (451, 446168), (473, 425416), (902, 223084), (946, 212708), (1297, 155144), (1763, 114136), (1804, 111542), (1892, 106354), (2594, 77572), (3526, 57068), (3608, 55771), (3784, 53177), (5188, 38786), (7052, 28534), (10376, 19393), (14104, 14267)]