8391280

素因数分解:

$2^4\times 5^1\times {\mathrm{104891}}^1$

素因数の和:104904

約数の個数: 20

約数和(自身を含む): 19509912

約数和(自身を除く): 11118632

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 104891, 209782, 419564, 524455, 839128, 1048910, 1678256, 2097820, 4195640, 8391280]

約数ペア:

[(1, 8391280), (2, 4195640), (4, 2097820), (5, 1678256), (8, 1048910), (10, 839128), (16, 524455), (20, 419564), (40, 209782), (80, 104891)]