20554688

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1$

素因数の和:170

約数の個数: 112

約数和(自身を含む): 52571904

約数和(自身を除く): 32017216

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 43, 44, 56, 64, 77, 86, 88, 97, 112, 154, 172, 176, 194, 224, 301, 308, 344, 352, 388, 448, 473, 602, 616, 679, 688, 704, 776, 946, 1067, 1204, 1232, 1358, 1376, 1552, 1892, 2134, 2408, 2464, 2716, 2752, 3104, 3311, 3784, 4171, 4268, 4816, 4928, 5432, 6208, 6622, 7469, 7568, 8342, 8536, 9632, 10864, 13244, 14938, 15136, 16684, 17072, 19264, 21728, 26488, 29197, 29876, 30272, 33368, 34144, 43456, 45881, 52976, 58394, 59752, 66736, 68288, 91762, 105952, 116788, 119504, 133472, 183524, 211904, 233576, 239008, 266944, 321167, 367048, 467152, 478016, 642334, 734096, 934304, 1284668, 1468192, 1868608, 2569336, 2936384, 5138672, 10277344, 20554688]

約数ペア:

[(1, 20554688), (2, 10277344), (4, 5138672), (7, 2936384), (8, 2569336), (11, 1868608), (14, 1468192), (16, 1284668), (22, 934304), (28, 734096), (32, 642334), (43, 478016), (44, 467152), (56, 367048), (64, 321167), (77, 266944), (86, 239008), (88, 233576), (97, 211904), (112, 183524), (154, 133472), (172, 119504), (176, 116788), (194, 105952), (224, 91762), (301, 68288), (308, 66736), (344, 59752), (352, 58394), (388, 52976), (448, 45881), (473, 43456), (602, 34144), (616, 33368), (679, 30272), (688, 29876), (704, 29197), (776, 26488), (946, 21728), (1067, 19264), (1204, 17072), (1232, 16684), (1358, 15136), (1376, 14938), (1552, 13244), (1892, 10864), (2134, 9632), (2408, 8536), (2464, 8342), (2716, 7568), (2752, 7469), (3104, 6622), (3311, 6208), (3784, 5432), (4171, 4928), (4268, 4816)]