39943720

素因数分解:

$2^3\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:382

約数の個数: 64

約数和(自身を含む): 93448080

約数和(自身を除く): 53504360

約数列:

[1, 2, 4, 5, 8, 10, 20, 37, 40, 74, 137, 148, 185, 197, 274, 296, 370, 394, 548, 685, 740, 788, 985, 1096, 1370, 1480, 1576, 1970, 2740, 3940, 5069, 5480, 7289, 7880, 10138, 14578, 20276, 25345, 26989, 29156, 36445, 40552, 50690, 53978, 58312, 72890, 101380, 107956, 134945, 145780, 202760, 215912, 269890, 291560, 539780, 998593, 1079560, 1997186, 3994372, 4992965, 7988744, 9985930, 19971860, 39943720]

約数ペア:

[(1, 39943720), (2, 19971860), (4, 9985930), (5, 7988744), (8, 4992965), (10, 3994372), (20, 1997186), (37, 1079560), (40, 998593), (74, 539780), (137, 291560), (148, 269890), (185, 215912), (197, 202760), (274, 145780), (296, 134945), (370, 107956), (394, 101380), (548, 72890), (685, 58312), (740, 53978), (788, 50690), (985, 40552), (1096, 36445), (1370, 29156), (1480, 26989), (1576, 25345), (1970, 20276), (2740, 14578), (3940, 10138), (5069, 7880), (5480, 7289)]