78407470

素因数分解:

$2^1\times 5^1\times {\mathrm{419}}^1\times {\mathrm{18713}}^1$

素因数の和:19139

約数の個数: 16

約数和(自身を含む): 141477840

約数和(自身を除く): 63070370

約数列:

[1, 2, 5, 10, 419, 838, 2095, 4190, 18713, 37426, 93565, 187130, 7840747, 15681494, 39203735, 78407470]

約数ペア:

[(1, 78407470), (2, 39203735), (5, 15681494), (10, 7840747), (419, 187130), (838, 93565), (2095, 37426), (4190, 18713)]