81401854

素因数分解:

$2^1\times {\mathrm{109}}^1\times {\mathrm{181}}^1\times {\mathrm{2063}}^1$

素因数の和:2355

約数の個数: 16

約数和(自身を含む): 123963840

約数和(自身を除く): 42561986

約数列:

[1, 2, 109, 181, 218, 362, 2063, 4126, 19729, 39458, 224867, 373403, 449734, 746806, 40700927, 81401854]

約数ペア:

[(1, 81401854), (2, 40700927), (109, 746806), (181, 449734), (218, 373403), (362, 224867), (2063, 39458), (4126, 19729)]