6557680

素因数分解:

$2^4\times 5^1\times {\mathrm{81971}}^1$

素因数の和:81984

約数の個数: 20

約数和(自身を含む): 15246792

約数和(自身を除く): 8689112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 81971, 163942, 327884, 409855, 655768, 819710, 1311536, 1639420, 3278840, 6557680]

約数ペア:

[(1, 6557680), (2, 3278840), (4, 1639420), (5, 1311536), (8, 819710), (10, 655768), (16, 409855), (20, 327884), (40, 163942), (80, 81971)]