61717225

素因数分解:

$5^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{7643}}^1$

素因数の和:7689

約数の個数: 24

約数和(自身を含む): 85307040

約数和(自身を除く): 23589815

約数列:

[1, 5, 17, 19, 25, 85, 95, 323, 425, 475, 1615, 7643, 8075, 38215, 129931, 145217, 191075, 649655, 726085, 2468689, 3248275, 3630425, 12343445, 61717225]

約数ペア:

[(1, 61717225), (5, 12343445), (17, 3630425), (19, 3248275), (25, 2468689), (85, 726085), (95, 649655), (323, 191075), (425, 145217), (475, 129931), (1615, 38215), (7643, 8075)]