217308440

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{50773}}^1$

素因数の和:50891

約数の個数: 32

約数和(自身を含む): 493523280

約数和(自身を除く): 276214840

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 214, 428, 535, 856, 1070, 2140, 4280, 50773, 101546, 203092, 253865, 406184, 507730, 1015460, 2030920, 5432711, 10865422, 21730844, 27163555, 43461688, 54327110, 108654220, 217308440]

約数ペア:

[(1, 217308440), (2, 108654220), (4, 54327110), (5, 43461688), (8, 27163555), (10, 21730844), (20, 10865422), (40, 5432711), (107, 2030920), (214, 1015460), (428, 507730), (535, 406184), (856, 253865), (1070, 203092), (2140, 101546), (4280, 50773)]