8205778820

素因数分解:

$2^2\times 5^1\times {\mathrm{139}}^1\times {\mathrm{2951719}}^1$

素因数の和:2951867

約数の個数: 24

約数和(自身を含む): 17356113600

約数和(自身を除く): 9150334780

約数列:

[1, 2, 4, 5, 10, 20, 139, 278, 556, 695, 1390, 2780, 2951719, 5903438, 11806876, 14758595, 29517190, 59034380, 410288941, 820577882, 1641155764, 2051444705, 4102889410, 8205778820]

約数ペア:

[(1, 8205778820), (2, 4102889410), (4, 2051444705), (5, 1641155764), (10, 820577882), (20, 410288941), (139, 59034380), (278, 29517190), (556, 14758595), (695, 11806876), (1390, 5903438), (2780, 2951719)]