205344280

素因数分解:

$2^3\times 5^1\times {\mathrm{67}}^1\times {\mathrm{193}}^1\times {\mathrm{397}}^1$

素因数の和:668

約数の個数: 64

約数和(自身を含む): 472537440

約数和(自身を除く): 267193160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 67, 134, 193, 268, 335, 386, 397, 536, 670, 772, 794, 965, 1340, 1544, 1588, 1930, 1985, 2680, 3176, 3860, 3970, 7720, 7940, 12931, 15880, 25862, 26599, 51724, 53198, 64655, 76621, 103448, 106396, 129310, 132995, 153242, 212792, 258620, 265990, 306484, 383105, 517240, 531980, 612968, 766210, 1063960, 1532420, 3064840, 5133607, 10267214, 20534428, 25668035, 41068856, 51336070, 102672140, 205344280]

約数ペア:

[(1, 205344280), (2, 102672140), (4, 51336070), (5, 41068856), (8, 25668035), (10, 20534428), (20, 10267214), (40, 5133607), (67, 3064840), (134, 1532420), (193, 1063960), (268, 766210), (335, 612968), (386, 531980), (397, 517240), (536, 383105), (670, 306484), (772, 265990), (794, 258620), (965, 212792), (1340, 153242), (1544, 132995), (1588, 129310), (1930, 106396), (1985, 103448), (2680, 76621), (3176, 64655), (3860, 53198), (3970, 51724), (7720, 26599), (7940, 25862), (12931, 15880)]