687900016

素因数分解:

$2^4\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{137}}^1\times {\mathrm{199}}^1$

素因数の和:446

約数の個数: 80

約数和(自身を含む): 1437408000

約数和(自身を除く): 749507984

約数列:

[1, 2, 4, 8, 16, 19, 38, 76, 83, 137, 152, 166, 199, 274, 304, 332, 398, 548, 664, 796, 1096, 1328, 1577, 1592, 2192, 2603, 3154, 3184, 3781, 5206, 6308, 7562, 10412, 11371, 12616, 15124, 16517, 20824, 22742, 25232, 27263, 30248, 33034, 41648, 45484, 54526, 60496, 66068, 90968, 109052, 132136, 181936, 216049, 218104, 264272, 313823, 432098, 436208, 517997, 627646, 864196, 1035994, 1255292, 1728392, 2071988, 2262829, 2510584, 3456784, 4143976, 4525658, 5021168, 8287952, 9051316, 18102632, 36205264, 42993751, 85987502, 171975004, 343950008, 687900016]

約数ペア:

[(1, 687900016), (2, 343950008), (4, 171975004), (8, 85987502), (16, 42993751), (19, 36205264), (38, 18102632), (76, 9051316), (83, 8287952), (137, 5021168), (152, 4525658), (166, 4143976), (199, 3456784), (274, 2510584), (304, 2262829), (332, 2071988), (398, 1728392), (548, 1255292), (664, 1035994), (796, 864196), (1096, 627646), (1328, 517997), (1577, 436208), (1592, 432098), (2192, 313823), (2603, 264272), (3154, 218104), (3184, 216049), (3781, 181936), (5206, 132136), (6308, 109052), (7562, 90968), (10412, 66068), (11371, 60496), (12616, 54526), (15124, 45484), (16517, 41648), (20824, 33034), (22742, 30248), (25232, 27263)]