403764220

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{284341}}^1$

素因数の和:284421

約数の個数: 24

約数和(自身を含む): 859850208

約数和(自身を除く): 456085988

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 284341, 568682, 1137364, 1421705, 2843410, 5686820, 20188211, 40376422, 80752844, 100941055, 201882110, 403764220]

約数ペア:

[(1, 403764220), (2, 201882110), (4, 100941055), (5, 80752844), (10, 40376422), (20, 20188211), (71, 5686820), (142, 2843410), (284, 1421705), (355, 1137364), (710, 568682), (1420, 284341)]