140807720

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{167}}^1\times {\mathrm{197}}^1$

素因数の和:482

約数の個数: 64

約数和(自身を含む): 323326080

約数和(自身を除く): 182518360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 167, 197, 214, 334, 394, 428, 535, 668, 788, 835, 856, 985, 1070, 1336, 1576, 1670, 1970, 2140, 3340, 3940, 4280, 6680, 7880, 17869, 21079, 32899, 35738, 42158, 65798, 71476, 84316, 89345, 105395, 131596, 142952, 164495, 168632, 178690, 210790, 263192, 328990, 357380, 421580, 657980, 714760, 843160, 1315960, 3520193, 7040386, 14080772, 17600965, 28161544, 35201930, 70403860, 140807720]

約数ペア:

[(1, 140807720), (2, 70403860), (4, 35201930), (5, 28161544), (8, 17600965), (10, 14080772), (20, 7040386), (40, 3520193), (107, 1315960), (167, 843160), (197, 714760), (214, 657980), (334, 421580), (394, 357380), (428, 328990), (535, 263192), (668, 210790), (788, 178690), (835, 168632), (856, 164495), (985, 142952), (1070, 131596), (1336, 105395), (1576, 89345), (1670, 84316), (1970, 71476), (2140, 65798), (3340, 42158), (3940, 35738), (4280, 32899), (6680, 21079), (7880, 17869)]