249426640

素因数分解:

$2^4\times 5^1\times {\mathrm{3117833}}^1$

素因数の和:3117846

約数の個数: 20

約数和(自身を含む): 579917124

約数和(自身を除く): 330490484

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 3117833, 6235666, 12471332, 15589165, 24942664, 31178330, 49885328, 62356660, 124713320, 249426640]

約数ペア:

[(1, 249426640), (2, 124713320), (4, 62356660), (5, 49885328), (8, 31178330), (10, 24942664), (16, 15589165), (20, 12471332), (40, 6235666), (80, 3117833)]