280133900

素因数分解:

$2^2\times 5^2\times {\mathrm{2801339}}^1$

素因数の和:2801353

約数の個数: 18

約数和(自身を含む): 607890780

約数和(自身を除く): 327756880

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 2801339, 5602678, 11205356, 14006695, 28013390, 56026780, 70033475, 140066950, 280133900]

約数ペア:

[(1, 280133900), (2, 140066950), (4, 70033475), (5, 56026780), (10, 28013390), (20, 14006695), (25, 11205356), (50, 5602678), (100, 2801339)]