20994860

素因数分解:

$2^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{45641}}^1$

素因数の和:45673

約数の個数: 24

約数和(自身を含む): 46007136

約数和(自身を除く): 25012276

約数列:

[1, 2, 4, 5, 10, 20, 23, 46, 92, 115, 230, 460, 45641, 91282, 182564, 228205, 456410, 912820, 1049743, 2099486, 4198972, 5248715, 10497430, 20994860]

約数ペア:

[(1, 20994860), (2, 10497430), (4, 5248715), (5, 4198972), (10, 2099486), (20, 1049743), (23, 912820), (46, 456410), (92, 228205), (115, 182564), (230, 91282), (460, 45641)]