199447880

素因数分解:

$2^3\times 5^1\times {\mathrm{4986197}}^1$

素因数の和:4986208

約数の個数: 16

約数和(自身を含む): 448757820

約数和(自身を除く): 249309940

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 4986197, 9972394, 19944788, 24930985, 39889576, 49861970, 99723940, 199447880]

約数ペア:

[(1, 199447880), (2, 99723940), (4, 49861970), (5, 39889576), (8, 24930985), (10, 19944788), (20, 9972394), (40, 4986197)]