217426495

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4283}}^1$

素因数の和:4383

約数の個数: 32

約数和(自身を含む): 310915584

約数和(自身を除く): 93489089

約数列:

[1, 5, 11, 13, 55, 65, 71, 143, 355, 715, 781, 923, 3905, 4283, 4615, 10153, 21415, 47113, 50765, 55679, 235565, 278395, 304093, 612469, 1520465, 3062345, 3345023, 3953209, 16725115, 19766045, 43485299, 217426495]

約数ペア:

[(1, 217426495), (5, 43485299), (11, 19766045), (13, 16725115), (55, 3953209), (65, 3345023), (71, 3062345), (143, 1520465), (355, 612469), (715, 304093), (781, 278395), (923, 235565), (3905, 55679), (4283, 50765), (4615, 47113), (10153, 21415)]