78960028

素因数分解:

$2^2\times 7^1\times {\mathrm{2820001}}^1$

素因数の和:2820012

約数の個数: 12

約数和(自身を含む): 157920112

約数和(自身を除く): 78960084

約数列:

[1, 2, 4, 7, 14, 28, 2820001, 5640002, 11280004, 19740007, 39480014, 78960028]

約数ペア:

[(1, 78960028), (2, 39480014), (4, 19740007), (7, 11280004), (14, 5640002), (28, 2820001)]