849257680

素因数分解:

$2^4\times 5^1\times {\mathrm{10615721}}^1$

素因数の和:10615734

約数の個数: 20

約数和(自身を含む): 1974524292

約数和(自身を除く): 1125266612

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 10615721, 21231442, 42462884, 53078605, 84925768, 106157210, 169851536, 212314420, 424628840, 849257680]

約数ペア:

[(1, 849257680), (2, 424628840), (4, 212314420), (5, 169851536), (8, 106157210), (10, 84925768), (16, 53078605), (20, 42462884), (40, 21231442), (80, 10615721)]