221482550

素因数分解:

$2^1\times 5^2\times {\mathrm{109}}^1\times {\mathrm{40639}}^1$

素因数の和:40760

約数の個数: 24

約数和(自身を含む): 415747200

約数和(自身を除く): 194264650

約数列:

[1, 2, 5, 10, 25, 50, 109, 218, 545, 1090, 2725, 5450, 40639, 81278, 203195, 406390, 1015975, 2031950, 4429651, 8859302, 22148255, 44296510, 110741275, 221482550]

約数ペア:

[(1, 221482550), (2, 110741275), (5, 44296510), (10, 22148255), (25, 8859302), (50, 4429651), (109, 2031950), (218, 1015975), (545, 406390), (1090, 203195), (2725, 81278), (5450, 40639)]