20204030

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1381}}^1$

素因数の和:1425

約数の個数: 64

約数和(自身を含む): 47761920

約数和(自身を除く): 27557890

約数列:

[1, 2, 5, 7, 10, 11, 14, 19, 22, 35, 38, 55, 70, 77, 95, 110, 133, 154, 190, 209, 266, 385, 418, 665, 770, 1045, 1330, 1381, 1463, 2090, 2762, 2926, 6905, 7315, 9667, 13810, 14630, 15191, 19334, 26239, 30382, 48335, 52478, 75955, 96670, 106337, 131195, 151910, 183673, 212674, 262390, 288629, 367346, 531685, 577258, 918365, 1063370, 1443145, 1836730, 2020403, 2886290, 4040806, 10102015, 20204030]

約数ペア:

[(1, 20204030), (2, 10102015), (5, 4040806), (7, 2886290), (10, 2020403), (11, 1836730), (14, 1443145), (19, 1063370), (22, 918365), (35, 577258), (38, 531685), (55, 367346), (70, 288629), (77, 262390), (95, 212674), (110, 183673), (133, 151910), (154, 131195), (190, 106337), (209, 96670), (266, 75955), (385, 52478), (418, 48335), (665, 30382), (770, 26239), (1045, 19334), (1330, 15191), (1381, 14630), (1463, 13810), (2090, 9667), (2762, 7315), (2926, 6905)]