20089795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{151}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 7489085

約数列:

[1, 5, 11, 41, 55, 59, 151, 205, 295, 451, 649, 755, 1661, 2255, 2419, 3245, 6191, 8305, 8909, 12095, 26609, 30955, 44545, 68101, 97999, 133045, 340505, 365269, 489995, 1826345, 4017959, 20089795]

約数ペア:

[(1, 20089795), (5, 4017959), (11, 1826345), (41, 489995), (55, 365269), (59, 340505), (151, 133045), (205, 97999), (295, 68101), (451, 44545), (649, 30955), (755, 26609), (1661, 12095), (2255, 8909), (2419, 8305), (3245, 6191)]