120400880

素因数分解:

$2^4\times 5^1\times {\mathrm{1505011}}^1$

素因数の和:1505024

約数の個数: 20

約数和(自身を含む): 279932232

約数和(自身を除く): 159531352

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1505011, 3010022, 6020044, 7525055, 12040088, 15050110, 24080176, 30100220, 60200440, 120400880]

約数ペア:

[(1, 120400880), (2, 60200440), (4, 30100220), (5, 24080176), (8, 15050110), (10, 12040088), (16, 7525055), (20, 6020044), (40, 3010022), (80, 1505011)]