64787855

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{353}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 88086528

約数和(自身を除く): 23298673

約数列:

[1, 5, 11, 47, 55, 71, 235, 353, 355, 517, 781, 1765, 2585, 3337, 3883, 3905, 16591, 16685, 19415, 25063, 36707, 82955, 125315, 182501, 183535, 275693, 912505, 1177961, 1378465, 5889805, 12957571, 64787855]

約数ペア:

[(1, 64787855), (5, 12957571), (11, 5889805), (47, 1378465), (55, 1177961), (71, 912505), (235, 275693), (353, 183535), (355, 182501), (517, 125315), (781, 82955), (1765, 36707), (2585, 25063), (3337, 19415), (3883, 16685), (3905, 16591)]