31190215

素因数分解:

$5^1\times 7^2\times {\mathrm{61}}^1\times {\mathrm{2087}}^1$

素因数の和:2167

約数の個数: 24

約数和(自身を含む): 44273952

約数和(自身を除く): 13083737

約数列:

[1, 5, 7, 35, 49, 61, 245, 305, 427, 2087, 2135, 2989, 10435, 14609, 14945, 73045, 102263, 127307, 511315, 636535, 891149, 4455745, 6238043, 31190215]

約数ペア:

[(1, 31190215), (5, 6238043), (7, 4455745), (35, 891149), (49, 636535), (61, 511315), (245, 127307), (305, 102263), (427, 73045), (2087, 14945), (2135, 14609), (2989, 10435)]