388889458

素因数分解:

$2^1\times {\mathrm{211}}^1\times {\mathrm{461}}^1\times {\mathrm{1999}}^1$

素因数の和:2673

約数の個数: 16

約数和(自身を含む): 587664000

約数和(自身を除く): 198774542

約数列:

[1, 2, 211, 422, 461, 922, 1999, 3998, 97271, 194542, 421789, 843578, 921539, 1843078, 194444729, 388889458]

約数ペア:

[(1, 388889458), (2, 194444729), (211, 1843078), (422, 921539), (461, 843578), (922, 421789), (1999, 194542), (3998, 97271)]