7989680

素因数分解:

$2^4\times 5^1\times {\mathrm{99871}}^1$

素因数の和:99884

約数の個数: 20

約数和(自身を含む): 18576192

約数和(自身を除く): 10586512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 99871, 199742, 399484, 499355, 798968, 998710, 1597936, 1997420, 3994840, 7989680]

約数ペア:

[(1, 7989680), (2, 3994840), (4, 1997420), (5, 1597936), (8, 998710), (10, 798968), (16, 499355), (20, 399484), (40, 199742), (80, 99871)]