20159155

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{307}}^1\times {\mathrm{571}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 25369344

約数和(自身を除く): 5210189

約数列:

[1, 5, 23, 115, 307, 571, 1535, 2855, 7061, 13133, 35305, 65665, 175297, 876485, 4031831, 20159155]

約数ペア:

[(1, 20159155), (5, 4031831), (23, 876485), (115, 175297), (307, 65665), (571, 35305), (1535, 13133), (2855, 7061)]