640393446

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2789}}^1$

素因数の和:2890

約数の個数: 96

約数和(自身を含む): 1648823040

約数和(自身を除く): 1008429594

約数列:

[1, 2, 3, 6, 7, 11, 14, 21, 22, 33, 42, 49, 66, 71, 77, 98, 142, 147, 154, 213, 231, 294, 426, 462, 497, 539, 781, 994, 1078, 1491, 1562, 1617, 2343, 2789, 2982, 3234, 3479, 4686, 5467, 5578, 6958, 8367, 10437, 10934, 16401, 16734, 19523, 20874, 30679, 32802, 38269, 39046, 58569, 61358, 76538, 92037, 114807, 117138, 136661, 184074, 198019, 214753, 229614, 273322, 396038, 409983, 429506, 594057, 644259, 819966, 1188114, 1288518, 1386133, 1503271, 2178209, 2772266, 3006542, 4158399, 4356418, 4509813, 6534627, 8316798, 9019626, 9702931, 13069254, 15247463, 19405862, 29108793, 30494926, 45742389, 58217586, 91484778, 106732241, 213464482, 320196723, 640393446]

約数ペア:

[(1, 640393446), (2, 320196723), (3, 213464482), (6, 106732241), (7, 91484778), (11, 58217586), (14, 45742389), (21, 30494926), (22, 29108793), (33, 19405862), (42, 15247463), (49, 13069254), (66, 9702931), (71, 9019626), (77, 8316798), (98, 6534627), (142, 4509813), (147, 4356418), (154, 4158399), (213, 3006542), (231, 2772266), (294, 2178209), (426, 1503271), (462, 1386133), (497, 1288518), (539, 1188114), (781, 819966), (994, 644259), (1078, 594057), (1491, 429506), (1562, 409983), (1617, 396038), (2343, 273322), (2789, 229614), (2982, 214753), (3234, 198019), (3479, 184074), (4686, 136661), (5467, 117138), (5578, 114807), (6958, 92037), (8367, 76538), (10437, 61358), (10934, 58569), (16401, 39046), (16734, 38269), (19523, 32802), (20874, 30679)]