61281115

素因数分解:

$5^1\times 7^2\times {\mathrm{389}}^1\times {\mathrm{643}}^1$

素因数の和:1051

約数の個数: 24

約数和(自身を含む): 85896720

約数和(自身を除く): 24615605

約数列:

[1, 5, 7, 35, 49, 245, 389, 643, 1945, 2723, 3215, 4501, 13615, 19061, 22505, 31507, 95305, 157535, 250127, 1250635, 1750889, 8754445, 12256223, 61281115]

約数ペア:

[(1, 61281115), (5, 12256223), (7, 8754445), (35, 1750889), (49, 1250635), (245, 250127), (389, 157535), (643, 95305), (1945, 31507), (2723, 22505), (3215, 19061), (4501, 13615)]