28381040

素因数分解:

$2^4\times 5^1\times {\mathrm{354763}}^1$

素因数の和:354776

約数の個数: 20

約数和(自身を含む): 65986104

約数和(自身を除く): 37605064

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 354763, 709526, 1419052, 1773815, 2838104, 3547630, 5676208, 7095260, 14190520, 28381040]

約数ペア:

[(1, 28381040), (2, 14190520), (4, 7095260), (5, 5676208), (8, 3547630), (10, 2838104), (16, 1773815), (20, 1419052), (40, 709526), (80, 354763)]