20805217210

素因数分解:

$2^1\times 5^1\times {\mathrm{67}}^1\times {\mathrm{509}}^1\times {\mathrm{61007}}^1$

素因数の和:61590

約数の個数: 32

約数和(自身を含む): 38083633920

約数和(自身を除く): 17278416710

約数列:

[1, 2, 5, 10, 67, 134, 335, 509, 670, 1018, 2545, 5090, 34103, 61007, 68206, 122014, 170515, 305035, 341030, 610070, 4087469, 8174938, 20437345, 31052563, 40874690, 62105126, 155262815, 310525630, 2080521721, 4161043442, 10402608605, 20805217210]

約数ペア:

[(1, 20805217210), (2, 10402608605), (5, 4161043442), (10, 2080521721), (67, 310525630), (134, 155262815), (335, 62105126), (509, 40874690), (670, 31052563), (1018, 20437345), (2545, 8174938), (5090, 4087469), (34103, 610070), (61007, 341030), (68206, 305035), (122014, 170515)]