28481805

素因数分解:

$3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{353}}^1$

素因数の和:538

約数の個数: 48

約数和(自身を含む): 54340416

約数和(自身を除く): 25858611

約数列:

[1, 3, 5, 9, 11, 15, 33, 45, 55, 99, 163, 165, 353, 489, 495, 815, 1059, 1467, 1765, 1793, 2445, 3177, 3883, 5295, 5379, 7335, 8965, 11649, 15885, 16137, 19415, 26895, 34947, 57539, 58245, 80685, 172617, 174735, 287695, 517851, 632929, 863085, 1898787, 2589255, 3164645, 5696361, 9493935, 28481805]

約数ペア:

[(1, 28481805), (3, 9493935), (5, 5696361), (9, 3164645), (11, 2589255), (15, 1898787), (33, 863085), (45, 632929), (55, 517851), (99, 287695), (163, 174735), (165, 172617), (353, 80685), (489, 58245), (495, 57539), (815, 34947), (1059, 26895), (1467, 19415), (1765, 16137), (1793, 15885), (2445, 11649), (3177, 8965), (3883, 7335), (5295, 5379)]