12815380

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{8111}}^1$

素因数の和:8199

約数の個数: 24

約数和(自身を含む): 27256320

約数和(自身を除く): 14440940

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 8111, 16222, 32444, 40555, 81110, 162220, 640769, 1281538, 2563076, 3203845, 6407690, 12815380]

約数ペア:

[(1, 12815380), (2, 6407690), (4, 3203845), (5, 2563076), (10, 1281538), (20, 640769), (79, 162220), (158, 81110), (316, 40555), (395, 32444), (790, 16222), (1580, 8111)]