397364080

素因数分解:

$2^4\times 5^1\times {\mathrm{4967051}}^1$

素因数の和:4967064

約数の個数: 20

約数和(自身を含む): 923871672

約数和(自身を除く): 526507592

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4967051, 9934102, 19868204, 24835255, 39736408, 49670510, 79472816, 99341020, 198682040, 397364080]

約数ペア:

[(1, 397364080), (2, 198682040), (4, 99341020), (5, 79472816), (8, 49670510), (10, 39736408), (16, 24835255), (20, 19868204), (40, 9934102), (80, 4967051)]