138420

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{769}}^1$

素因数の和:784

約数の個数: 36

約数和(自身を含む): 420420

約数和(自身を除く): 282000

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 769, 1538, 2307, 3076, 3845, 4614, 6921, 7690, 9228, 11535, 13842, 15380, 23070, 27684, 34605, 46140, 69210, 138420]

約数ペア:

[(1, 138420), (2, 69210), (3, 46140), (4, 34605), (5, 27684), (6, 23070), (9, 15380), (10, 13842), (12, 11535), (15, 9228), (18, 7690), (20, 6921), (30, 4614), (36, 3845), (45, 3076), (60, 2307), (90, 1538), (180, 769)]