20169170

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{3947}}^1$

素因数の和:4034

約数の個数: 32

約数和(自身を含む): 42069888

約数和(自身を除く): 21900718

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 73, 146, 365, 511, 730, 1022, 2555, 3947, 5110, 7894, 19735, 27629, 39470, 55258, 138145, 276290, 288131, 576262, 1440655, 2016917, 2881310, 4033834, 10084585, 20169170]

約数ペア:

[(1, 20169170), (2, 10084585), (5, 4033834), (7, 2881310), (10, 2016917), (14, 1440655), (35, 576262), (70, 288131), (73, 276290), (146, 138145), (365, 55258), (511, 39470), (730, 27629), (1022, 19735), (2555, 7894), (3947, 5110)]