20428410

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{1307}}^1$

素因数の和:1838

約数の個数: 32

約数和(自身を含む): 49159872

約数和(自身を除く): 28731462

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 521, 1042, 1307, 1563, 2605, 2614, 3126, 3921, 5210, 6535, 7815, 7842, 13070, 15630, 19605, 39210, 680947, 1361894, 2042841, 3404735, 4085682, 6809470, 10214205, 20428410]

約数ペア:

[(1, 20428410), (2, 10214205), (3, 6809470), (5, 4085682), (6, 3404735), (10, 2042841), (15, 1361894), (30, 680947), (521, 39210), (1042, 19605), (1307, 15630), (1563, 13070), (2605, 7842), (2614, 7815), (3126, 6535), (3921, 5210)]