77571280

素因数分解:

$2^4\times 5^1\times {\mathrm{969641}}^1$

素因数の和:969654

約数の個数: 20

約数和(自身を含む): 180353412

約数和(自身を除く): 102782132

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 969641, 1939282, 3878564, 4848205, 7757128, 9696410, 15514256, 19392820, 38785640, 77571280]

約数ペア:

[(1, 77571280), (2, 38785640), (4, 19392820), (5, 15514256), (8, 9696410), (10, 7757128), (16, 4848205), (20, 3878564), (40, 1939282), (80, 969641)]