19993565

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1\times {\mathrm{571}}^1$

素因数の和:772

約数の個数: 16

約数和(自身を含む): 24710400

約数和(自身を除く): 4716835

約数列:

[1, 5, 47, 149, 235, 571, 745, 2855, 7003, 26837, 35015, 85079, 134185, 425395, 3998713, 19993565]

約数ペア:

[(1, 19993565), (5, 3998713), (47, 425395), (149, 134185), (235, 85079), (571, 35015), (745, 26837), (2855, 7003)]