9780118970

素因数分解:

$2^1\times 5^1\times {\mathrm{978011897}}^1$

素因数の和:978011904

約数の個数: 8

約数和(自身を含む): 17604214164

約数和(自身を除く): 7824095194

約数列:

[1, 2, 5, 10, 978011897, 1956023794, 4890059485, 9780118970]

約数ペア:

[(1, 9780118970), (2, 4890059485), (5, 1956023794), (10, 978011897)]