8216420

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3769}}^1$

素因数の和:3887

約数の個数: 24

約数和(自身を含む): 17417400

約数和(自身を除く): 9200980

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 3769, 7538, 15076, 18845, 37690, 75380, 410821, 821642, 1643284, 2054105, 4108210, 8216420]

約数ペア:

[(1, 8216420), (2, 4108210), (4, 2054105), (5, 1643284), (10, 821642), (20, 410821), (109, 75380), (218, 37690), (436, 18845), (545, 15076), (1090, 7538), (2180, 3769)]