4205240

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{8087}}^1$

素因数の和:8111

約数の個数: 32

約数和(自身を含む): 10190880

約数和(自身を除く): 5985640

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 8087, 16174, 32348, 40435, 64696, 80870, 105131, 161740, 210262, 323480, 420524, 525655, 841048, 1051310, 2102620, 4205240]

約数ペア:

[(1, 4205240), (2, 2102620), (4, 1051310), (5, 841048), (8, 525655), (10, 420524), (13, 323480), (20, 210262), (26, 161740), (40, 105131), (52, 80870), (65, 64696), (104, 40435), (130, 32348), (260, 16174), (520, 8087)]