828851960840

素因数分解:

$2^3\times 5^1\times {\mathrm{20721299021}}^1$

素因数の和:20721299032

約数の個数: 16

約数和(自身を含む): 1864916911980

約数和(自身を除く): 1036064951140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 20721299021, 41442598042, 82885196084, 103606495105, 165770392168, 207212990210, 414425980420, 828851960840]

約数ペア:

[(1, 828851960840), (2, 414425980420), (4, 207212990210), (5, 165770392168), (8, 103606495105), (10, 82885196084), (20, 41442598042), (40, 20721299021)]