57216680

素因数分解:

$2^3\times 5^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:398

約数の個数: 64

約数和(自身を含む): 132794640

約数和(自身を除く): 75577960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 53, 106, 137, 197, 212, 265, 274, 394, 424, 530, 548, 685, 788, 985, 1060, 1096, 1370, 1576, 1970, 2120, 2740, 3940, 5480, 7261, 7880, 10441, 14522, 20882, 26989, 29044, 36305, 41764, 52205, 53978, 58088, 72610, 83528, 104410, 107956, 134945, 145220, 208820, 215912, 269890, 290440, 417640, 539780, 1079560, 1430417, 2860834, 5721668, 7152085, 11443336, 14304170, 28608340, 57216680]

約数ペア:

[(1, 57216680), (2, 28608340), (4, 14304170), (5, 11443336), (8, 7152085), (10, 5721668), (20, 2860834), (40, 1430417), (53, 1079560), (106, 539780), (137, 417640), (197, 290440), (212, 269890), (265, 215912), (274, 208820), (394, 145220), (424, 134945), (530, 107956), (548, 104410), (685, 83528), (788, 72610), (985, 58088), (1060, 53978), (1096, 52205), (1370, 41764), (1576, 36305), (1970, 29044), (2120, 26989), (2740, 20882), (3940, 14522), (5480, 10441), (7261, 7880)]