397786960

素因数分解:

$2^4\times 5^1\times {\mathrm{4972337}}^1$

素因数の和:4972350

約数の個数: 20

約数和(自身を含む): 924854868

約数和(自身を除く): 527067908

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 4972337, 9944674, 19889348, 24861685, 39778696, 49723370, 79557392, 99446740, 198893480, 397786960]

約数ペア:

[(1, 397786960), (2, 198893480), (4, 99446740), (5, 79557392), (8, 49723370), (10, 39778696), (16, 24861685), (20, 19889348), (40, 9944674), (80, 4972337)]