221245100

素因数分解:

$2^2\times 5^2\times {\mathrm{89}}^1\times {\mathrm{24859}}^1$

素因数の和:24962

約数の個数: 36

約数和(自身を含む): 485515800

約数和(自身を除く): 264270700

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 89, 100, 178, 356, 445, 890, 1780, 2225, 4450, 8900, 24859, 49718, 99436, 124295, 248590, 497180, 621475, 1242950, 2212451, 2485900, 4424902, 8849804, 11062255, 22124510, 44249020, 55311275, 110622550, 221245100]

約数ペア:

[(1, 221245100), (2, 110622550), (4, 55311275), (5, 44249020), (10, 22124510), (20, 11062255), (25, 8849804), (50, 4424902), (89, 2485900), (100, 2212451), (178, 1242950), (356, 621475), (445, 497180), (890, 248590), (1780, 124295), (2225, 99436), (4450, 49718), (8900, 24859)]