20787401570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{159903089}}^1$

素因数の和:159903109

約数の個数: 16

約数和(自身を含む): 40295578680

約数和(自身を除く): 19508177110

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 159903089, 319806178, 799515445, 1599030890, 2078740157, 4157480314, 10393700785, 20787401570]

約数ペア:

[(1, 20787401570), (2, 10393700785), (5, 4157480314), (10, 2078740157), (13, 1599030890), (26, 799515445), (65, 319806178), (130, 159903089)]