7121680

素因数分解:

$2^4\times 5^1\times {\mathrm{89021}}^1$

素因数の和:89034

約数の個数: 20

約数和(自身を含む): 16558092

約数和(自身を除く): 9436412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 89021, 178042, 356084, 445105, 712168, 890210, 1424336, 1780420, 3560840, 7121680]

約数ペア:

[(1, 7121680), (2, 3560840), (4, 1780420), (5, 1424336), (8, 890210), (10, 712168), (16, 445105), (20, 356084), (40, 178042), (80, 89021)]