839200420

素因数分解:

$2^2\times 5^1\times {\mathrm{1949}}^1\times {\mathrm{21529}}^1$

素因数の和:23487

約数の個数: 24

約数和(自身を含む): 1763307000

約数和(自身を除く): 924106580

約数列:

[1, 2, 4, 5, 10, 20, 1949, 3898, 7796, 9745, 19490, 21529, 38980, 43058, 86116, 107645, 215290, 430580, 41960021, 83920042, 167840084, 209800105, 419600210, 839200420]

約数ペア:

[(1, 839200420), (2, 419600210), (4, 209800105), (5, 167840084), (10, 83920042), (20, 41960021), (1949, 430580), (3898, 215290), (7796, 107645), (9745, 86116), (19490, 43058), (21529, 38980)]