6640840

素因数分解:

$2^3\times 5^1\times {\mathrm{166021}}^1$

素因数の和:166032

約数の個数: 16

約数和(自身を含む): 14941980

約数和(自身を除く): 8301140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 166021, 332042, 664084, 830105, 1328168, 1660210, 3320420, 6640840]

約数ペア:

[(1, 6640840), (2, 3320420), (4, 1660210), (5, 1328168), (8, 830105), (10, 664084), (20, 332042), (40, 166021)]