200212820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{72019}}^1$

素因数の和:72167

約数の個数: 24

約数和(自身を含む): 423477600

約数和(自身を除く): 223264780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 72019, 144038, 288076, 360095, 720190, 1440380, 10010641, 20021282, 40042564, 50053205, 100106410, 200212820]

約数ペア:

[(1, 200212820), (2, 100106410), (4, 50053205), (5, 40042564), (10, 20021282), (20, 10010641), (139, 1440380), (278, 720190), (556, 360095), (695, 288076), (1390, 144038), (2780, 72019)]