3920140

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{28001}}^1$

素因数の和:28017

約数の個数: 24

約数和(自身を含む): 9408672

約数和(自身を除く): 5488532

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 28001, 56002, 112004, 140005, 196007, 280010, 392014, 560020, 784028, 980035, 1960070, 3920140]

約数ペア:

[(1, 3920140), (2, 1960070), (4, 980035), (5, 784028), (7, 560020), (10, 392014), (14, 280010), (20, 196007), (28, 140005), (35, 112004), (70, 56002), (140, 28001)]