127657660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{490991}}^1$

素因数の和:491013

約数の個数: 24

約数和(自身を含む): 288703296

約数和(自身を除く): 161045636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 490991, 981982, 1963964, 2454955, 4909910, 6382883, 9819820, 12765766, 25531532, 31914415, 63828830, 127657660]

約数ペア:

[(1, 127657660), (2, 63828830), (4, 31914415), (5, 25531532), (10, 12765766), (13, 9819820), (20, 6382883), (26, 4909910), (52, 2454955), (65, 1963964), (130, 981982), (260, 490991)]