20888065

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{157}}^1$

素因数の和:273

約数の個数: 32

約数和(自身を含む): 28667520

約数和(自身を除く): 7779455

約数列:

[1, 5, 11, 41, 55, 59, 157, 205, 295, 451, 649, 785, 1727, 2255, 2419, 3245, 6437, 8635, 9263, 12095, 26609, 32185, 46315, 70807, 101893, 133045, 354035, 379783, 509465, 1898915, 4177613, 20888065]

約数ペア:

[(1, 20888065), (5, 4177613), (11, 1898915), (41, 509465), (55, 379783), (59, 354035), (157, 133045), (205, 101893), (295, 70807), (451, 46315), (649, 32185), (785, 26609), (1727, 12095), (2255, 9263), (2419, 8635), (3245, 6437)]