51640810

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{397237}}^1$

素因数の和:397257

約数の個数: 16

約数和(自身を含む): 100103976

約数和(自身を除く): 48463166

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 397237, 794474, 1986185, 3972370, 5164081, 10328162, 25820405, 51640810]

約数ペア:

[(1, 51640810), (2, 25820405), (5, 10328162), (10, 5164081), (13, 3972370), (26, 1986185), (65, 794474), (130, 397237)]