200077520

素因数分解:

$2^4\times 5^1\times {\mathrm{2500969}}^1$

素因数の和:2500982

約数の個数: 20

約数和(自身を含む): 465180420

約数和(自身を除く): 265102900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 2500969, 5001938, 10003876, 12504845, 20007752, 25009690, 40015504, 50019380, 100038760, 200077520]

約数ペア:

[(1, 200077520), (2, 100038760), (4, 50019380), (5, 40015504), (8, 25009690), (10, 20007752), (16, 12504845), (20, 10003876), (40, 5001938), (80, 2500969)]