25117520

素因数分解:

$2^4\times 5^1\times {\mathrm{313969}}^1$

素因数の和:313982

約数の個数: 20

約数和(自身を含む): 58398420

約数和(自身を除く): 33280900

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 313969, 627938, 1255876, 1569845, 2511752, 3139690, 5023504, 6279380, 12558760, 25117520]

約数ペア:

[(1, 25117520), (2, 12558760), (4, 6279380), (5, 5023504), (8, 3139690), (10, 2511752), (16, 1569845), (20, 1255876), (40, 627938), (80, 313969)]