20858447870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{160449599}}^1$

素因数の和:160449619

約数の個数: 16

約数和(自身を含む): 40433299200

約数和(自身を除く): 19574851330

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 160449599, 320899198, 802247995, 1604495990, 2085844787, 4171689574, 10429223935, 20858447870]

約数ペア:

[(1, 20858447870), (2, 10429223935), (5, 4171689574), (10, 2085844787), (13, 1604495990), (26, 802247995), (65, 320899198), (130, 160449599)]