19956400

素因数分解:

$2^4\times 5^2\times {\mathrm{49891}}^1$

素因数の和:49909

約数の個数: 30

約数和(自身を含む): 47946212

約数和(自身を除く): 27989812

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 49891, 99782, 199564, 249455, 399128, 498910, 798256, 997820, 1247275, 1995640, 2494550, 3991280, 4989100, 9978200, 19956400]

約数ペア:

[(1, 19956400), (2, 9978200), (4, 4989100), (5, 3991280), (8, 2494550), (10, 1995640), (16, 1247275), (20, 997820), (25, 798256), (40, 498910), (50, 399128), (80, 249455), (100, 199564), (200, 99782), (400, 49891)]