79887440

素因数分解:

$2^4\times 5^1\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{197}}^1$

素因数の和:384

約数の個数: 80

約数和(自身を含む): 193126032

約数和(自身を除く): 113238592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 37, 40, 74, 80, 137, 148, 185, 197, 274, 296, 370, 394, 548, 592, 685, 740, 788, 985, 1096, 1370, 1480, 1576, 1970, 2192, 2740, 2960, 3152, 3940, 5069, 5480, 7289, 7880, 10138, 10960, 14578, 15760, 20276, 25345, 26989, 29156, 36445, 40552, 50690, 53978, 58312, 72890, 81104, 101380, 107956, 116624, 134945, 145780, 202760, 215912, 269890, 291560, 405520, 431824, 539780, 583120, 998593, 1079560, 1997186, 2159120, 3994372, 4992965, 7988744, 9985930, 15977488, 19971860, 39943720, 79887440]

約数ペア:

[(1, 79887440), (2, 39943720), (4, 19971860), (5, 15977488), (8, 9985930), (10, 7988744), (16, 4992965), (20, 3994372), (37, 2159120), (40, 1997186), (74, 1079560), (80, 998593), (137, 583120), (148, 539780), (185, 431824), (197, 405520), (274, 291560), (296, 269890), (370, 215912), (394, 202760), (548, 145780), (592, 134945), (685, 116624), (740, 107956), (788, 101380), (985, 81104), (1096, 72890), (1370, 58312), (1480, 53978), (1576, 50690), (1970, 40552), (2192, 36445), (2740, 29156), (2960, 26989), (3152, 25345), (3940, 20276), (5069, 15760), (5480, 14578), (7289, 10960), (7880, 10138)]