128761256

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{1238089}}^1$

素因数の和:1238108

約数の個数: 16

約数和(自身を含む): 259998900

約数和(自身を除く): 131237644

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 1238089, 2476178, 4952356, 9904712, 16095157, 32190314, 64380628, 128761256]

約数ペア:

[(1, 128761256), (2, 64380628), (4, 32190314), (8, 16095157), (13, 9904712), (26, 4952356), (52, 2476178), (104, 1238089)]