920144

素因数分解:

$2^4\times {\mathrm{131}}^1\times {\mathrm{439}}^1$

素因数の和:578

約数の個数: 20

約数和(自身を含む): 1800480

約数和(自身を除く): 880336

約数列:

[1, 2, 4, 8, 16, 131, 262, 439, 524, 878, 1048, 1756, 2096, 3512, 7024, 57509, 115018, 230036, 460072, 920144]

約数ペア:

[(1, 920144), (2, 460072), (4, 230036), (8, 115018), (16, 57509), (131, 7024), (262, 3512), (439, 2096), (524, 1756), (878, 1048)]