638593680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{27431}}^1$

素因数の和:27544

約数の個数: 80

約数和(自身を含む): 2000121984

約数和(自身を除く): 1361528304

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 40, 48, 60, 80, 97, 120, 194, 240, 291, 388, 485, 582, 776, 970, 1164, 1455, 1552, 1940, 2328, 2910, 3880, 4656, 5820, 7760, 11640, 23280, 27431, 54862, 82293, 109724, 137155, 164586, 219448, 274310, 329172, 411465, 438896, 548620, 658344, 822930, 1097240, 1316688, 1645860, 2194480, 2660807, 3291720, 5321614, 6583440, 7982421, 10643228, 13304035, 15964842, 21286456, 26608070, 31929684, 39912105, 42572912, 53216140, 63859368, 79824210, 106432280, 127718736, 159648420, 212864560, 319296840, 638593680]

約数ペア:

[(1, 638593680), (2, 319296840), (3, 212864560), (4, 159648420), (5, 127718736), (6, 106432280), (8, 79824210), (10, 63859368), (12, 53216140), (15, 42572912), (16, 39912105), (20, 31929684), (24, 26608070), (30, 21286456), (40, 15964842), (48, 13304035), (60, 10643228), (80, 7982421), (97, 6583440), (120, 5321614), (194, 3291720), (240, 2660807), (291, 2194480), (388, 1645860), (485, 1316688), (582, 1097240), (776, 822930), (970, 658344), (1164, 548620), (1455, 438896), (1552, 411465), (1940, 329172), (2328, 274310), (2910, 219448), (3880, 164586), (4656, 137155), (5820, 109724), (7760, 82293), (11640, 54862), (23280, 27431)]