612580

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:399

約数の個数: 24

約数和(自身を含む): 1302840

約数和(自身を除く): 690260

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 281, 436, 545, 562, 1090, 1124, 1405, 2180, 2810, 5620, 30629, 61258, 122516, 153145, 306290, 612580]

約数ペア:

[(1, 612580), (2, 306290), (4, 153145), (5, 122516), (10, 61258), (20, 30629), (109, 5620), (218, 2810), (281, 2180), (436, 1405), (545, 1124), (562, 1090)]