133515440

素因数分解:

$2^4\times 5^1\times {\mathrm{1668943}}^1$

素因数の和:1668956

約数の個数: 20

約数和(自身を含む): 310423584

約数和(自身を除く): 176908144

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 1668943, 3337886, 6675772, 8344715, 13351544, 16689430, 26703088, 33378860, 66757720, 133515440]

約数ペア:

[(1, 133515440), (2, 66757720), (4, 33378860), (5, 26703088), (8, 16689430), (10, 13351544), (16, 8344715), (20, 6675772), (40, 3337886), (80, 1668943)]