80389648

素因数分解:

$2^4\times {\mathrm{1993}}^1\times {\mathrm{2521}}^1$

素因数の和:4522

約数の個数: 20

約数和(自身を含む): 155894908

約数和(自身を除く): 75505260

約数列:

[1, 2, 4, 8, 16, 1993, 2521, 3986, 5042, 7972, 10084, 15944, 20168, 31888, 40336, 5024353, 10048706, 20097412, 40194824, 80389648]

約数ペア:

[(1, 80389648), (2, 40194824), (4, 20097412), (8, 10048706), (16, 5024353), (1993, 40336), (2521, 31888), (3986, 20168), (5042, 15944), (7972, 10084)]