2798225

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:209

約数の個数: 24

約数和(自身を含む): 3764640

約数和(自身を除く): 966415

約数列:

[1, 5, 19, 25, 43, 95, 137, 215, 475, 685, 817, 1075, 2603, 3425, 4085, 5891, 13015, 20425, 29455, 65075, 111929, 147275, 559645, 2798225]

約数ペア:

[(1, 2798225), (5, 559645), (19, 147275), (25, 111929), (43, 65075), (95, 29455), (137, 20425), (215, 13015), (475, 5891), (685, 4085), (817, 3425), (1075, 2603)]