139213520

素因数分解:

$2^4\times 5^1\times {\mathrm{1740169}}^1$

素因数の和:1740182

約数の個数: 20

約数和(自身を含む): 323671620

約数和(自身を除く): 184458100

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1740169, 3480338, 6960676, 8700845, 13921352, 17401690, 27842704, 34803380, 69606760, 139213520]

約数ペア:

[(1, 139213520), (2, 69606760), (4, 34803380), (5, 27842704), (8, 17401690), (10, 13921352), (16, 8700845), (20, 6960676), (40, 3480338), (80, 1740169)]