1980920

素因数分解:

$2^3\times 5^1\times {\mathrm{49523}}^1$

素因数の和:49534

約数の個数: 16

約数和(自身を含む): 4457160

約数和(自身を除く): 2476240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 49523, 99046, 198092, 247615, 396184, 495230, 990460, 1980920]

約数ペア:

[(1, 1980920), (2, 990460), (4, 495230), (5, 396184), (8, 247615), (10, 198092), (20, 99046), (40, 49523)]