20904290

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{3221}}^1$

素因数の和:3298

約数の個数: 32

約数和(自身を含む): 41757120

約数和(自身を除く): 20852830

約数列:

[1, 2, 5, 10, 11, 22, 55, 59, 110, 118, 295, 590, 649, 1298, 3221, 3245, 6442, 6490, 16105, 32210, 35431, 70862, 177155, 190039, 354310, 380078, 950195, 1900390, 2090429, 4180858, 10452145, 20904290]

約数ペア:

[(1, 20904290), (2, 10452145), (5, 4180858), (10, 2090429), (11, 1900390), (22, 950195), (55, 380078), (59, 354310), (110, 190039), (118, 177155), (295, 70862), (590, 35431), (649, 32210), (1298, 16105), (3221, 6490), (3245, 6442)]