20640912

素因数分解:

$2^4\times 3^1\times {\mathrm{430019}}^1$

素因数の和:430030

約数の個数: 20

約数和(自身を含む): 53322480

約数和(自身を除く): 32681568

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 430019, 860038, 1290057, 1720076, 2580114, 3440152, 5160228, 6880304, 10320456, 20640912]

約数ペア:

[(1, 20640912), (2, 10320456), (3, 6880304), (4, 5160228), (6, 3440152), (8, 2580114), (12, 1720076), (16, 1290057), (24, 860038), (48, 430019)]