18355568

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:390

約数の個数: 80

約数和(自身を含む): 45425664

約数和(自身を除く): 27070096

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 47, 56, 77, 88, 94, 112, 154, 176, 188, 308, 317, 329, 376, 517, 616, 634, 658, 752, 1034, 1232, 1268, 1316, 2068, 2219, 2536, 2632, 3487, 3619, 4136, 4438, 5072, 5264, 6974, 7238, 8272, 8876, 13948, 14476, 14899, 17752, 24409, 27896, 28952, 29798, 35504, 48818, 55792, 57904, 59596, 97636, 104293, 119192, 163889, 195272, 208586, 238384, 327778, 390544, 417172, 655556, 834344, 1147223, 1311112, 1668688, 2294446, 2622224, 4588892, 9177784, 18355568]

約数ペア:

[(1, 18355568), (2, 9177784), (4, 4588892), (7, 2622224), (8, 2294446), (11, 1668688), (14, 1311112), (16, 1147223), (22, 834344), (28, 655556), (44, 417172), (47, 390544), (56, 327778), (77, 238384), (88, 208586), (94, 195272), (112, 163889), (154, 119192), (176, 104293), (188, 97636), (308, 59596), (317, 57904), (329, 55792), (376, 48818), (517, 35504), (616, 29798), (634, 28952), (658, 27896), (752, 24409), (1034, 17752), (1232, 14899), (1268, 14476), (1316, 13948), (2068, 8876), (2219, 8272), (2536, 7238), (2632, 6974), (3487, 5264), (3619, 5072), (4136, 4438)]