219765320

素因数分解:

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

素因数の和:542

約数の個数: 48

約数和(自身を含む): 499975740

約数和(自身を除く): 280210420

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 167, 197, 334, 394, 668, 788, 835, 985, 1336, 1576, 1670, 1970, 3340, 3940, 6680, 7880, 27889, 32899, 55778, 65798, 111556, 131596, 139445, 164495, 223112, 263192, 278890, 328990, 557780, 657980, 1115560, 1315960, 5494133, 10988266, 21976532, 27470665, 43953064, 54941330, 109882660, 219765320]

約数ペア:

[(1, 219765320), (2, 109882660), (4, 54941330), (5, 43953064), (8, 27470665), (10, 21976532), (20, 10988266), (40, 5494133), (167, 1315960), (197, 1115560), (334, 657980), (394, 557780), (668, 328990), (788, 278890), (835, 263192), (985, 223112), (1336, 164495), (1576, 139445), (1670, 131596), (1970, 111556), (3340, 65798), (3940, 55778), (6680, 32899), (7880, 27889)]