105000028

素因数分解:

$2^2\times 7^1\times {\mathrm{3750001}}^1$

素因数の和:3750012

約数の個数: 12

約数和(自身を含む): 210000112

約数和(自身を除く): 105000084

約数列:

[1, 2, 4, 7, 14, 28, 3750001, 7500002, 15000004, 26250007, 52500014, 105000028]

約数ペア:

[(1, 105000028), (2, 52500014), (4, 26250007), (7, 15000004), (14, 7500002), (28, 3750001)]