149680

素因数分解:

$2^4\times 5^1\times {\mathrm{1871}}^1$

素因数の和:1884

約数の個数: 20

約数和(自身を含む): 348192

約数和(自身を除く): 198512

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1871, 3742, 7484, 9355, 14968, 18710, 29936, 37420, 74840, 149680]

約数ペア:

[(1, 149680), (2, 74840), (4, 37420), (5, 29936), (8, 18710), (10, 14968), (16, 9355), (20, 7484), (40, 3742), (80, 1871)]