78871090

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{415111}}^1$

素因数の和:415137

約数の個数: 16

約数和(自身を含む): 149440320

約数和(自身を除く): 70569230

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 415111, 830222, 2075555, 4151110, 7887109, 15774218, 39435545, 78871090]

約数ペア:

[(1, 78871090), (2, 39435545), (5, 15774218), (10, 7887109), (19, 4151110), (38, 2075555), (95, 830222), (190, 415111)]