261639355

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{457}}^1\times {\mathrm{1709}}^1$

素因数の和:2238

約数の個数: 16

約数和(自身を含む): 319537440

約数和(自身を除く): 57898085

約数列:

[1, 5, 67, 335, 457, 1709, 2285, 8545, 30619, 114503, 153095, 572515, 781013, 3905065, 52327871, 261639355]

約数ペア:

[(1, 261639355), (5, 52327871), (67, 3905065), (335, 781013), (457, 572515), (1709, 153095), (2285, 114503), (8545, 30619)]