80897680

素因数分解:

$2^4\times 5^1\times {\mathrm{1011221}}^1$

素因数の和:1011234

約数の個数: 20

約数和(自身を含む): 188087292

約数和(自身を除く): 107189612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1011221, 2022442, 4044884, 5056105, 8089768, 10112210, 16179536, 20224420, 40448840, 80897680]

約数ペア:

[(1, 80897680), (2, 40448840), (4, 20224420), (5, 16179536), (8, 10112210), (10, 8089768), (16, 5056105), (20, 4044884), (40, 2022442), (80, 1011221)]