1981040

素因数分解:

$2^4\times 5^1\times {\mathrm{24763}}^1$

素因数の和:24776

約数の個数: 20

約数和(自身を含む): 4606104

約数和(自身を除く): 2625064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 24763, 49526, 99052, 123815, 198104, 247630, 396208, 495260, 990520, 1981040]

約数ペア:

[(1, 1981040), (2, 990520), (4, 495260), (5, 396208), (8, 247630), (10, 198104), (16, 123815), (20, 99052), (40, 49526), (80, 24763)]