974399990

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{5128421}}^1$

素因数の和:5128447

約数の個数: 16

約数和(自身を含む): 1846231920

約数和(自身を除く): 871831930

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 5128421, 10256842, 25642105, 51284210, 97439999, 194879998, 487199995, 974399990]

約数ペア:

[(1, 974399990), (2, 487199995), (5, 194879998), (10, 97439999), (19, 51284210), (38, 25642105), (95, 10256842), (190, 5128421)]