28105884

素因数分解:

$2^2\times 3^2\times {\mathrm{780719}}^1$

素因数の和:780729

約数の個数: 18

約数和(自身を含む): 71045520

約数和(自身を除く): 42939636

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 780719, 1561438, 2342157, 3122876, 4684314, 7026471, 9368628, 14052942, 28105884]

約数ペア:

[(1, 28105884), (2, 14052942), (3, 9368628), (4, 7026471), (6, 4684314), (9, 3122876), (12, 2342157), (18, 1561438), (36, 780719)]