77820405

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{399079}}^1$

素因数の和:399100

約数の個数: 16

約数和(自身を含む): 134090880

約数和(自身を除く): 56270475

約数列:

[1, 3, 5, 13, 15, 39, 65, 195, 399079, 1197237, 1995395, 5188027, 5986185, 15564081, 25940135, 77820405]

約数ペア:

[(1, 77820405), (3, 25940135), (5, 15564081), (13, 5986185), (15, 5188027), (39, 1995395), (65, 1197237), (195, 399079)]