20201120

素因数分解:

$2^5\times 5^1\times {\mathrm{126257}}^1$

素因数の和:126272

約数の個数: 24

約数和(自身を含む): 47725524

約数和(自身を除く): 27524404

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 126257, 252514, 505028, 631285, 1010056, 1262570, 2020112, 2525140, 4040224, 5050280, 10100560, 20201120]

約数ペア:

[(1, 20201120), (2, 10100560), (4, 5050280), (5, 4040224), (8, 2525140), (10, 2020112), (16, 1262570), (20, 1010056), (32, 631285), (40, 505028), (80, 252514), (160, 126257)]