217420360

素因数分解:

$2^3\times 5^1\times {\mathrm{31}}^1\times {\mathrm{67}}^1\times {\mathrm{2617}}^1$

素因数の和:2726

約数の個数: 64

約数和(自身を含む): 512709120

約数和(自身を除く): 295288760

約数列:

[1, 2, 4, 5, 8, 10, 20, 31, 40, 62, 67, 124, 134, 155, 248, 268, 310, 335, 536, 620, 670, 1240, 1340, 2077, 2617, 2680, 4154, 5234, 8308, 10385, 10468, 13085, 16616, 20770, 20936, 26170, 41540, 52340, 81127, 83080, 104680, 162254, 175339, 324508, 350678, 405635, 649016, 701356, 811270, 876695, 1402712, 1622540, 1753390, 3245080, 3506780, 5435509, 7013560, 10871018, 21742036, 27177545, 43484072, 54355090, 108710180, 217420360]

約数ペア:

[(1, 217420360), (2, 108710180), (4, 54355090), (5, 43484072), (8, 27177545), (10, 21742036), (20, 10871018), (31, 7013560), (40, 5435509), (62, 3506780), (67, 3245080), (124, 1753390), (134, 1622540), (155, 1402712), (248, 876695), (268, 811270), (310, 701356), (335, 649016), (536, 405635), (620, 350678), (670, 324508), (1240, 175339), (1340, 162254), (2077, 104680), (2617, 83080), (2680, 81127), (4154, 52340), (5234, 41540), (8308, 26170), (10385, 20936), (10468, 20770), (13085, 16616)]