438881680

素因数分解:

$2^4\times 5^1\times {\mathrm{5486021}}^1$

素因数の和:5486034

約数の個数: 20

約数和(自身を含む): 1020400092

約数和(自身を除く): 581518412

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 5486021, 10972042, 21944084, 27430105, 43888168, 54860210, 87776336, 109720420, 219440840, 438881680]

約数ペア:

[(1, 438881680), (2, 219440840), (4, 109720420), (5, 87776336), (8, 54860210), (10, 43888168), (16, 27430105), (20, 21944084), (40, 10972042), (80, 5486021)]