219707900

素因数分解:

$2^2\times 5^2\times {\mathrm{401}}^1\times {\mathrm{5479}}^1$

素因数の和:5894

約数の個数: 36

約数和(自身を含む): 478042320

約数和(自身を除く): 258334420

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 401, 802, 1604, 2005, 4010, 5479, 8020, 10025, 10958, 20050, 21916, 27395, 40100, 54790, 109580, 136975, 273950, 547900, 2197079, 4394158, 8788316, 10985395, 21970790, 43941580, 54926975, 109853950, 219707900]

約数ペア:

[(1, 219707900), (2, 109853950), (4, 54926975), (5, 43941580), (10, 21970790), (20, 10985395), (25, 8788316), (50, 4394158), (100, 2197079), (401, 547900), (802, 273950), (1604, 136975), (2005, 109580), (4010, 54790), (5479, 40100), (8020, 27395), (10025, 21916), (10958, 20050)]