15987205

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3671}}^1$

素因数の和:3756

約数の個数: 16

約数和(自身を含む): 20974464

約数和(自身を除く): 4987259

約数列:

[1, 5, 13, 65, 67, 335, 871, 3671, 4355, 18355, 47723, 238615, 245957, 1229785, 3197441, 15987205]

約数ペア:

[(1, 15987205), (5, 3197441), (13, 1229785), (65, 245957), (67, 238615), (335, 47723), (871, 18355), (3671, 4355)]