13991125

素因数分解:

$5^3\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{137}}^1$

素因数の和:214

約数の個数: 32

約数和(自身を含む): 18944640

約数和(自身を除く): 4953515

約数列:

[1, 5, 19, 25, 43, 95, 125, 137, 215, 475, 685, 817, 1075, 2375, 2603, 3425, 4085, 5375, 5891, 13015, 17125, 20425, 29455, 65075, 102125, 111929, 147275, 325375, 559645, 736375, 2798225, 13991125]

約数ペア:

[(1, 13991125), (5, 2798225), (19, 736375), (25, 559645), (43, 325375), (95, 147275), (125, 111929), (137, 102125), (215, 65075), (475, 29455), (685, 20425), (817, 17125), (1075, 13015), (2375, 5891), (2603, 5375), (3425, 4085)]