208979560

素因数分解:

$2^3\times 5^1\times {\mathrm{107}}^1\times {\mathrm{157}}^1\times {\mathrm{311}}^1$

素因数の和:586

約数の個数: 64

約数和(自身を含む): 479157120

約数和(自身を除く): 270177560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 107, 157, 214, 311, 314, 428, 535, 622, 628, 785, 856, 1070, 1244, 1256, 1555, 1570, 2140, 2488, 3110, 3140, 4280, 6220, 6280, 12440, 16799, 33277, 33598, 48827, 66554, 67196, 83995, 97654, 133108, 134392, 166385, 167990, 195308, 244135, 266216, 332770, 335980, 390616, 488270, 665540, 671960, 976540, 1331080, 1953080, 5224489, 10448978, 20897956, 26122445, 41795912, 52244890, 104489780, 208979560]

約数ペア:

[(1, 208979560), (2, 104489780), (4, 52244890), (5, 41795912), (8, 26122445), (10, 20897956), (20, 10448978), (40, 5224489), (107, 1953080), (157, 1331080), (214, 976540), (311, 671960), (314, 665540), (428, 488270), (535, 390616), (622, 335980), (628, 332770), (785, 266216), (856, 244135), (1070, 195308), (1244, 167990), (1256, 166385), (1555, 134392), (1570, 133108), (2140, 97654), (2488, 83995), (3110, 67196), (3140, 66554), (4280, 48827), (6220, 33598), (6280, 33277), (12440, 16799)]