646363888

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{641}}^1$

素因数の和:806

約数の個数: 80

約数和(自身を含む): 1375626240

約数和(自身を除く): 729262352

約数列:

[1, 2, 4, 8, 16, 19, 31, 38, 62, 76, 107, 124, 152, 214, 248, 304, 428, 496, 589, 641, 856, 1178, 1282, 1712, 2033, 2356, 2564, 3317, 4066, 4712, 5128, 6634, 8132, 9424, 10256, 12179, 13268, 16264, 19871, 24358, 26536, 32528, 39742, 48716, 53072, 63023, 68587, 79484, 97432, 126046, 137174, 158968, 194864, 252092, 274348, 317936, 377549, 504184, 548696, 755098, 1008368, 1097392, 1303153, 1510196, 2126197, 2606306, 3020392, 4252394, 5212612, 6040784, 8504788, 10425224, 17009576, 20850448, 34019152, 40397743, 80795486, 161590972, 323181944, 646363888]

約数ペア:

[(1, 646363888), (2, 323181944), (4, 161590972), (8, 80795486), (16, 40397743), (19, 34019152), (31, 20850448), (38, 17009576), (62, 10425224), (76, 8504788), (107, 6040784), (124, 5212612), (152, 4252394), (214, 3020392), (248, 2606306), (304, 2126197), (428, 1510196), (496, 1303153), (589, 1097392), (641, 1008368), (856, 755098), (1178, 548696), (1282, 504184), (1712, 377549), (2033, 317936), (2356, 274348), (2564, 252092), (3317, 194864), (4066, 158968), (4712, 137174), (5128, 126046), (6634, 97432), (8132, 79484), (9424, 68587), (10256, 63023), (12179, 53072), (13268, 48716), (16264, 39742), (19871, 32528), (24358, 26536)]