64405165

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{16493}}^1$

素因数の和:16580

約数の個数: 16

約数和(自身を含む): 85504896

約数和(自身を除く): 21099731

約数列:

[1, 5, 11, 55, 71, 355, 781, 3905, 16493, 82465, 181423, 907115, 1171003, 5855015, 12881033, 64405165]

約数ペア:

[(1, 64405165), (5, 12881033), (11, 5855015), (55, 1171003), (71, 907115), (355, 181423), (781, 82465), (3905, 16493)]