20284780

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{53381}}^1$

素因数の和:53409

約数の個数: 24

約数和(自身を含む): 44840880

約数和(自身を除く): 24556100

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 53381, 106762, 213524, 266905, 533810, 1014239, 1067620, 2028478, 4056956, 5071195, 10142390, 20284780]

約数ペア:

[(1, 20284780), (2, 10142390), (4, 5071195), (5, 4056956), (10, 2028478), (19, 1067620), (20, 1014239), (38, 533810), (76, 266905), (95, 213524), (190, 106762), (380, 53381)]